To breed a rose with a specific aroma when none of the present roses have it, you would use Mendel's methods of cross-pollination and repeated selection for the desired trait (i.e., the aroma) across several generations. Also, keep in mind that even if the aroma isn't prominent in one generation, it can still reappear in the following generations.
Explanation:To breed a rose species with a wonderful smell, even if none of the individual roses currently have that trait, selective breeding strategies - similar to the ones used by Gregor Mendel in his experiments with peas - can be employed. First, we need to identify roses that have any trace of the desired fragrance. Even if it's not the exact smell we want, these roses contain at least some of the needed genes. Then, following Mendel’s methodology, we would cross-pollinate these roses by transferring pollen from one flower to another to avoid self-fertilization. Over time, this approach will hopefully help to cultivate a stronger manifestation of the desired fragrance.
Mendel used a similar approach with seven distinct traits in peas, including flower color and seed shape, perform several rounds of hybridizations, and watched how these traits passed onto the next generation. Using Mendel's methods for breeding roses, one would continue to select the offspring roses that show the strongest expression of the desired trait (the wonderful smell) and breed them. This process would be repeated for several generations until the roses consistently produce the aroma desired.
One important point from Mendel’s work was the concept of concealed traits. Even if a trait does not appear in a generation (just as white flowers disappeared in one of Mendel's cross-breeds but later reappeared), it does not mean it has been lost. Hence, even if the wonderful smell does not appear strongly in some generations of roses, continued selective breeding can still foster its emergence.
Learn more about Selective Breeding of Roses here:https://brainly.com/question/15525236
#SPJ12
______ mutations are more like to become common in a population through natural selection
Beneficial mutations are more likely to become common in a population through natural selection, as they enhance survival and reproductive success. These mutations can lead to advantageous traits becoming widespread and potentially fixed within a population's gene pool over time.
Explanation:Beneficial mutations are more likely to become common in a population through natural selection. Mutations are changes to an organism's DNA and can introduce new genotypic and phenotypic variance. While some mutations may be detrimental or neutral, it is the advantageous mutations that play a crucial role in the process of evolution. Beneficial mutations help organisms survive, reproduce, and better adapt to their environment, thereby increasing the likelihood of being passed on to future generations.
For example, in a population of mice living in a woodland environment, a mutation that causes fur color to closely match the forest floor can lead to a form of stabilizing selection, where mice with this coloration are less likely to be predated and more likely to reproduce. Over time, such beneficial traits may become widespread within the gene pool. Similarly, certain alleles can become fixed in the population, which means every individual carries that allele, as it offers a significant reproductive advantage.
An allele frequency can change via natural selection when the allele provides a phenotype that enhances survival or reproductive success. Such alleles will be in greater frequency in subsequent generations, potentially leading to fixation of the allele in the population and a corresponding decrease in other alleles.
Final answer:
Beneficial mutations are more likely to become common in a population through natural selection by helping organisms adapt and increase their chances of survival and reproduction.
Explanation:
Beneficial mutations are more likely to become common in a population through natural selection. Beneficial mutations are mutations that have a positive effect on the organism, helping it to better adapt to changes in the environment. These mutations increase the organism's chances of surviving or reproducing, making them more likely to be passed on to future generations and become more common in the population over time.
Steroid and peptide hormones typically have in common _____.
Answer:
Larger amino acid hormones include peptides and protein hormones. Steroid hormones are derived from cholesterol. Steroid hormones and thyroid hormone are lipid soluble. ... Hydrophobic hormones are able to diffuse through the membrane and interact with an intracellular receptor ...... hope this helps at all
HELPPPPP WILLL GIVE BRAINLIEST!!!!!RATE!!!!! AND THANKS!!!!! EASY BUT IM DUMB!!!!
What was found in the "goo" in the beaker of the Miller-Urey experiment?
A) bacteria
B) algae
C) amino acids
D)nucleic acid
Answer:
C) amino acids
Explanation:
Amino acids were found in the "goo" in the beaker of the Miller-Urey experiment. Therefore, option (C) is correct.
What is Miller-Urey experiment?The Miller-Urey experiment was a landmark experiment conducted in 1952 by Stanley Miller and Harold Urey to investigate the origin of life on Earth. The experiment aimed to simulate the conditions of the early Earth and test whether organic molecules, the building blocks of life, could be formed spontaneously from inorganic compounds.
The experiment produced a variety of organic compounds, including amino acids, which are the building blocks of proteins. The results of the Miller-Urey experiment provided evidence that the building blocks of life could have formed spontaneously on the early Earth.
Learn more about Miller-Urey experiment, here:
https://brainly.com/question/12887279
#SPJ2
Why is the osmolarity of the medullary fluid in the kidney greater than the osmolarity of the blood plasma?
Answer:
This is because the loop of Henle that is found in the kidney functions as a countercurrent multiplier and contributes solutes to the interstitial fluid. Urea is recycled from the collecting duct and is transported to the interstitial fluid.
Explanation:
Osmolarity can be defined as the determination of the quantity of the solute that present in a given quantity of water( 1 liter ). It is used to measure the concentration of solute.
Osmolarity of the medullary fluid in the kidney greater than the osmolarity of the blood plasma and this is because the loop of Henle that is found in the kidney uses energy to generate an osmotic gradient that enables it to reabsorb water from the tubular fluid and produce concentrated urine a process that is referred to as countercurrent multiplication and contributes solutes to the interstitial fluid. Urea is recycled from the collecting duct and is transported to the interstitial fluid.
Hence, osmolarity of the medullary fluid in the kidney is set at a high limit of as 1500 mOsm/L while that of plasma osmolarity is 280 to 295 mOsm/L and it must not exceed the upper limit of 310 mOsm/L.
Answer:This is because the loop of Henle that is found in the kidney functions as a countercurrent multiplier and contributes solutes to the hyper-tonic medullary interstitial fluid.
Explanation:
Osmolarity is the concentration of a solution expressed as the total number of solute particles per litre. In other words Osmolarity” refers to the concentration of dissolved particles of chemicals and minerals, particles such as sodium and other electrolytes in your serum. Higher osmolarity means more particles in your serum. Lower osmolality means that the particles are more diluted.
The loop of Henle that is found in the kidney which function as a countercurrent multiplier, contributes solutes to the hyper-tonic medullary interstitial fluid making the osmolarity of the medullary fluid in the kidney greater than the osmolarity of the blood plasma.
Two chromosomes that are similar but not identical are called _______________________. When the chromosomes are duplicated, two identical chromosomes are called _______________________.
Answer:
Two chromosomes that are similar but not identical are called homologous chromosomes. When the chromosomes are duplicated, two identical chromosomes are called sister chromatids.
Explanation:
The yellow ring inside the bacterial cell represents the bacterial DNA. Why does this structure disappear by step 3 of the lytic cycle?
will give Brainliest
3- synthesis.this is when replication of viral nucleic acid and protein and envelope.
Answer:
The bacterial DNA gets degraded at step 3 of the viral lytic cycle.
Explanation:
Viruses are organisms that are incapable of replicating on their own, hence, they require a living host which they infect and use its replicational ability to reproduce theirselves. The infection cycle of this virus is regarded as its replication cycle. Viruses employ either the LYTIC or LYSOGENIC cycle for infection.
The lytic cycle involves killing of their host cell at the end of the cycle. Generally, the cycle starts with the attachment of my the virus to the cell membrane of its host using specific receptor sites (step 1). It then penetrates the host cell as seen in step 2.
After penetration, the virus then secretes certain degrading enzymes called ENDONUCLEASES that degrades the bacterial DNA. After which the virus uses the replicational and gene expressing ability of the host to transcibe its genetic material and replicate itself. This process called SYNTHESIS occurs in step 3.
Hence, the yellow ring in the image that represents bacterial DNA disappears in step 3 (synthesis stage) because it gets degraded by viral digesting enzymes.
The heartworms that can accumulate within the hearts of dogs and other mammals have a pseudocoelom, an alimentary canal, and an outer covering that is occasionally shed. To which phylum does the heartworm belong?
Answer:
The heartworms that can accumulate within the hearts of dogs and other mammals have a pseudocoelom, an alimentary canal, and an outer covering that is occasionally shed. To which phylum does the heartworm belong?
protozoa
Explanation:
Protozoa contain parasites that are habor by mammals as their host
A momma cat has both solid black and solid white sons. You can conclude she was ____
A. Heterozygous
B. Pure breeding
C. Homozygous Recessive
D. Homozygous Dominant
Answer:
A. Heterozygous
Explanation:
A heterozygous trait involves an organism having one copy of two different alleles.
The B- represents the solid color black trait
The b- represents the solid color white trait.
This is said to be a heterozygous trait because it contains two expressed traits.
Answer: Option A.
Explanation:
Heterozygous means that an organism has two different alleles of a gene. E.g an allele for Black is B and allele for white is b. If a cat has Bb, it has heterozygous alleles.
The momma cat is heterozygous because she has both allele for solid black and solid white.
The force of ____ opposes the motion of all moving objects.
A. Inertia
B. Whiplash
C. Resistance
D. Friction
E. Gravity
Answer: D. friction
Explanation:
Answer:
D
Explanation:
Friction is a force that opposes motion between two surfaces that are in contact. Friction can cause a moving object, such as a ball, to slow down and eventually stop.
Consider the following data.
Rates for Cheetah Population from 2011 to 2012
Cause of change
2011
2012
Deaths
2
1
Births
5
4
Immigration
6
1
Emigration
8
3
Which would have to happen to keep the population growth of cheetahs the same in 2013?
4 deaths, 7 births, 2 immigration, 6 emigration
3 deaths, 6 births, 5 immigration, 7 emigration
5 deaths, 2 births, 8 immigration, 3 emigration
1 deaths, 5 births, 3 immigration, 7 emigration
Answer:
The correct answer would be B) 3 deaths, 6 births, 5 immigration, 7 emigration.
Explanation:
The study of a living being is called biology.
The Correct Answer is B.
The number of species counting in a population is called a census. The factors which are changing the population count is as follows:-
Birth rate (B)Death rate (D)Emigration (E)Immigration. (I)The Formula used to check the population growth is
N = (B+I) - (D+E).
After putting the value the population is same as the 2013 year is option 3 that is 3 deaths, 6 births, 5 immigration, 7 emigration
Hence, the correct option is B.
For more information, refer to the link:-
https://brainly.com/question/13899929
Which characteristic would most likely remain constant when a limestone cobble is subjected to extensive abrasion?
1)Shape
2)Mass
3)Composition
4)Volume
Answer:
Which characteristic would most likely remain constant when a limestone cobble is subjected to extensive abrasion
Composition
Explanation:
The constituents of cobble still remain irrespective of the extensive abrasion that it might be done on it. the composition remain the same
At least three types of rna are required for protein synthesis. Compare and contrast mrna
Answer:
Messenger RNA
Ribosomal RNA
Transfer RNA
Explanation:
Messenger RNA (mRNA)is a single RNA strand that contains the genetic information from DNA molecules which is translated into protein
Ribosomal RNAs (rRNAs) form organelles named ribosomes in which proteins are synthesized. The ribosome contains a region to interact with the mRNA
Transfer RNA (tRNA) is an 80 nucleotide RNA molecule that has an anticodon region and a region to attach amino acids which use to decode an mRNA into protein
The diagram shows a forest food web.
Which organism is both a secondary and tertiary
consumer?
rabbit
TOX
grasshopper
shrew
Shrew
Snake
Mouse
Grasshopper
Rabbit
Answer:
B
Explanation:
The primary as well as secondary consumer is the fox in the diagram. Thus, option B is correct.
What are the consumers?Organisms in the food web are:
producersconsumersdecomposersProducers are the organisms which are mostly autotrophic and produce their own food by photosynthesis.
The organisms which are herbivores and eat only plant matter are primary consumers. The organisms which eat primary consumers or herbivores are called secondary consumers and organisms which feed on both primary and secondary consumers are called as tertiary consumers.
Organisms which eat dead and decaying plant and animal remains are called as decomposers.
Therefore fox is secondary and tertiary consumer. Hence, option E is correct.
Learn more about consumers, here:
https://brainly.com/question/15869639
#SPJ6
The question is incomplete, but most probably the complete question is,
What type of succession
will occur if a parking lot
is abandoned for 1000
years?
Answer:
Primary Succession
Explanation:
Because no organisms previously lived on it. Parking lots can be considered
like rocks, which also undergo primary succession. Overtime soil will be blown onto the parking lot and if not maintained plants
will begin to grow thus starting new life.
Primary succession will occur if parking lot is abandoned for 1000 years.
What is primary succession?The process of establishing plant and animal communities in a place that was previously devoid of life, like barren rock or a recently formed island, is known as primary succession.
Lichens and mosses would first colonize the bare pavement in the abandoned parking lot as the first stage of primary succession, which would then be followed by the emergence of grasses, shrubs, and eventually trees.
A more diverse and complex ecosystem would eventually develop as a result of the plant community's ability to sustain and attract a wide range of species over time, including insects, birds, and mammals.
Depending on a variety of environmental circumstances, the total process of primary succession may take hundreds or even thousands of years.
Thus, the answer is primary succession.
For more details regarding primary succession, visit:
https://brainly.com/question/26675203
#SPJ6
Zora neale hurston and langston hughes were two of the many luminaries that flourished in the
Answer:
Harlem Renaissance in upper Manhattan
Explanation:
Final answer:
Zora Neale Hurston and Langston Hughes were influential figures in the Harlem Renaissance, a period of African American cultural expression in the 1920s and 1930s. Their works celebrated African American heritage, addressed racial prejudice, and laid a foundation for future American art and literature.
Explanation:
Harlem Renaissance Luminaries: Zora Neale Hurston and Langston Hughes
Zora Neale Hurston and Langston Hughes were prominent figures who flourished during the Harlem Renaissance, a vibrant period of African American cultural expression that began around 1920 and extended into the mid-1930s. Hughes was widely recognized as a prolific writer, leaving a significant mark with his poems such as "The Negro Speaks of Rivers" and "I, Too, Sing America," which celebrated African-American heritage and the resilient spirit of the community. Hurston, although her most famous novel "Their Eyes Were Watching God" was published in 1937, was a key literary figure whose work depicted the life and dialect of rural black communities, celebrating black dialogue and addressing racial prejudice and stereotypes. Together, these artists contributed to the creation of a unique and independent black culture that fueled racial pride and was distinct from the emulation of European or white American cultural norms.
Their works, among others, laid the groundwork for a new American literary and artistic landscape, rejecting European standards that had previously dominated and instead forging an original path that would inspire future generations. Not only did they address the struggles of black Americans, but they also countered pervasive racial stereotypes and encouraged African Americans to band together to fight against racial prejudice. The Harlem Renaissance was marked by such literary and artistic achievements, and it stood as a dynamic era of creativity and self-expression that profoundly influenced American art, literature, and culture.
Why do we study fossils and how do they support the theory of evolution?
Answer:
This supports Darwin's theory of evolution, which states that simple life forms gradually evolved into more complex ones. Evidence for early forms of life comes from fossils. By studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth.
Explanation:
Answer:
Explanation:
The fossil record shows gradual changes in species, and reveals how different organisms came to be what they are
Which processes are part of the fast carbon cycle?
A. Transpiration and photosynthesis
B. Deforestiation and fossil fuel formation
C. Transpiration and fossil fuel formation
D. Cellular respiration and photosynthesis
Answer:
Cellular respiration and photosynthesis.
Explanation:
How does the rate of photosynthesis compare to the rate of cellular respiration in producers?
While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration. Without any oxygen, much less ATP would be produced.
Answer:
c
Explanation:
pH 6.5 , pH 6.0 , pH 55 , pH 5.0 pH 45 pH 4.0
3
Trout
Effect of Environmental Change on Organisms/Populations Question
(8.11B):
The graph below shows the pH tolerance level for different organisms
in a freshwater ecosystem. What would most likely happen if the pH
of the pond water dropped from 5.5 to 4.5?
Bass
Perch
Frogs
Salamanders
Clams
Select one:
Crayfish
Snails
Mayfly
O
The populations of all organisms would increase.
O
The populations of most organisms would decrease.
O
The populations of one or two organisms would decrease.
O
The populations of most organisms would not change.
Answer:
The populations of one or two organisms would decrease.
Explanation:
Eric made a physical model of a cell membrane by putting one zip-top plastic bag inside another. He punched some straws through the plastic so that they led from outside the outer bag to the inside of the inner bag.
Which of the following features of a cell membrane can be seen using Eric's physical model?
Proteins and other molecules can move around within the cell membrane.
A cell membrane is made of two layers.
Some molecules can pass directly through the cell membrane.
Pores and proteins in the cell membrane allow passage through it.
Answer:
A cell membrane is made of two layers.
The cell membrane is composed by a phospholipid bilayer where the interior side is hydrophobic and non-polar, while the outside is hydrophilic and polar
Pores and proteins in the cell membrane allow passage through it.
The pores and proteins in the cell membrane have several functions such as, for example, cell signaling (proteins) and selective transport (pores)
Pores and proteins in the cell membrane allow passage through it.
A cell membrane is made of two layers.
What are the features of salmonella prevent it from being phagocytosed?
Answer:
Salmonella are made of Flagella which prevent it from being phagocytosed.
Flagella is a long filamentous organelle responsible for bacterial motility. falgella are present exteranlly in all three dimensionally in salmonella and it helps salmonella to swim in liquid conditions and rotates the flagella on firm surfaces.
Flagella is known as PAMPs (pathogenic molecular patterns) in salmonella which is used by the host to identify bacteria and activate the immune system of the bacteria.
Hence, rotating or motility and immune function of flagella in salmonella prevent it from being phagocytosed.
Now, suppose Lauren wants to buy exactly 2 bracelets and 2 other pieces of jewelry. There are ways to select 2 bracelets. There are ways to select 2 pieces of jewelry that are not bracelets.
Answer:
There are 15 ways to select 2 bracelets.
There are 10 ways to select 2 pieces of jewelry that are not bracelets.
How many ways can Lauren select 4 pieces of jewelry, of which exactly 2 are bracelets?
150
hopes this helps :)
Explanation:
The question relates to the mathematical field of combinatory, particularly combinations. To find the total ways Lauren can choose her jewelry, we use the formula '(n choose 2) * (m choose 2)', where n is the number of bracelets and m is the number of other jewelry items.
Explanation:The subject of this question appears to be related to combinatorics, specifically, combination. If we suppose that there are 'n' bracelets and 'm' pieces of jewelry that aren't bracelets, Lauren has 'n choose 2' ways to select the bracelets and 'm choose 2' ways to select the other pieces of jewelry. Therefore, the total number of ways in which Lauren can choose her jewelry is the product of the two, i.e., '(n choose 2) × (m choose 2)'.
For example, if Lauren has 3 bracelets and 4 other types of jewelry to choose from, she can select the bracelets in '3 choose 2' = 3 ways, and the other pieces of jewelry in '4 choose 2' = 6 ways. Thus, she has a total of 3×6 = 18 possible ways to choose 2 bracelets and 2 other pieces of jewelry.
Learn more about Combinatorics here:https://brainly.com/question/32015929
#SPJ2
HURRYYY 25 points
Practice 4: True or False
1. Antibodies made from white blood cells target pathogens and kill them directly by attaching to
their surface and injecting toxins,
Answer:
False
Explanation:
They do not inject toxins, they just engulf them.
Energy produced from material that comes with living organisms is known as
The stimulation of b cells to divide and mature is provided by
Answer & explanation:
B cells or B lymphocytes are produced and divided initially in the yolk sac (structure that stores the calf, a substance responsible for the nutrition of an embryo), then in the liver and later in the bone marrow, where they remain in the form of lymphoid progenitor cells until their maturation .
B cells are responsible for ensuring humoral immunity, characterized by the immune response through the production of antibodies, in order to fight invading cells such as infections by viruses or bacteria.
The stimulation of b cells to divide and mature is provided by T helper cells.
B cells participate in humoral immunity, this is characterized by the production and release of antibodies in order to destroy the antigens for which they were created.
The antigens that induce the activation of B cells can be protein, polysaccharides, lipids, etc, according to what type of antigen they require the participation of T helper cells.
T helper cells have receptors for MHCII in their membrane and binding for costimulators, which when they interact with these, activate T helper cells.Once activated, these secrete cytokines to stimulate the proliferation and differentiation of B cells.Cytokines are not specific for each antigen, although they have been secreted by the activation of a specific T helper cell.Cytokines stimulate the proliferation and differentiation of B cells and they determine what type of immunoglobulin genes will be produced by the activation of B cells.Therefore, we can conclude that the stimulation of b cells to divide and mature is provided by T helper cells.
Learn more here: https://brainly.com/question/25588607
Which statement about bandages is true? a. An occlusive primary layer allows air to penetrate the wound. b. If a wound is exudative, a semiocclusive primary layer is indicated. c. The tertiary bandage layer contacts the wound surface (if a wound is present) and may be adherent or nonadherent and occlusive or semiocclusive. d. A dry-dry bandage has as its primary layer an adherent material soaked in saline.
b. If a wound is exudative, a semiocclusive primary layer is indicated.
Explanation:
The bandage is a material which is used to cover the wound or injury to provide support to the medical device used for dressing over the wound. A bandage often restricts the movement of the body part over which it is applied.
The primary layer of the bandage remains in contact with the body tissues. The semiocclusive primary layer is applied over the wound if the serous fluid oozes out of the wound and to restrict the flow of exudate. This is applied to keep the wound in the moist state.
Based on above description, b. is the correct option related to the bandage.
For gene B, the father is homozygous dominant and the mother is homozygous recessive.
(A) the chance of a homozygous dominant offspring is 50%
(B) the chance of a homozygous recessive offspring is 50%
(C) the chance of a heterozygous offspring is 50%
(D) all offspring will show the dominant phenotype
Answer: D (all offspring will show the dominant phenotype)
Explanation: Since there is a dominant parent, it cancels out the other reccessive parent, thus giving the offspring a 100% chance of displaying the dominant phenotype. Hope this helped
Answer:
D
Explanation:
Which best explains why viruses are not classified by Linnaean taxonomy?
A) Viruses do not contain any genetic information or a cell wall.
B) Viruses share many characteristics with several of the kingdoms.
C) Viruses cannot reproduce outside a host cell and are therefore nonliving.
D) Viruses lack a protein coat and any metabolic activity.
Answer:
C) Viruses cannot reproduce outside a host cell and are therefore nonliving.
Explanation:
Viruses cannot reproduce outside a host cell and are therefore nonliving. Their cell walls are created from different substances and bacteria has an RNA polymerase that archaea lacks.
Answer:
C
Explanation:
which statement can be made about the evolutionary relationship between a bird and a butterfly
Answer: Birds and butterflies have homologous organs, which indicate they share a common ancestor.
Explanation:
Please select all statements that are TRUE of proteins. (Select all correct answers) 1. Proteins can help bind and transport nutrients throughout the body. 2. Proteins provide a readily available source of stored energy in the body. 3. Proteins form protective barriers against foreign particles as components of the skin and mucus membranes in our body. 4. Body temperature is regulated by proteins that transmit heat to the skin. 5. The acid/base balance in the body is maintained by the buffering capacity of proteins. 6. Many enzymes in the body are proteins that help to increase the rate of metabolic reactions. 7. The protein albumin assists with maintenance of fluid balance in the body.
Answer:
1. Proteins can help bind and transport nutrients throughout the body.
2. Proteins provide a readily available source of stored energy in the body.
5. The acid/base balance in the body is maintained by the buffering capacity of proteins.
6. Many enzymes in the body are proteins that help to increase the rate of metabolic reactions
7. The protein albumin assists with maintenance of fluid balance in the body.
Explanation:
Protein transporters helps in the movement of nutrients ,minerals in the. Glucose transporter is an example of transport protein it helps transport glucose in the cell.
Protein has about 4kcal/g of energy. The energy is stored but are mostly used when an individual is fasting and had used up his energy.
Protein act as buffer they help to regulate the amount of acid and base in the body fluids. Heamoglobin is an example of buffer protein that act by binding to acid thereby maintaining the blood pH. Protein are enzyme and they help catalyze chemical reaction and used in metabolic activities in the body. They also main body fluid albumin and globulin help maintain the body fluid.