According to the hardy-weinberg principle, if 75% of the alleles in the gene pool are a1 and 25% are a2, what is the proportion of individuals with genotype a1a2 in this population?
According to the Hardy-Weinberg principle, the proportion of individuals with genotype a1a2 in a population can be calculated using the formula 2pq, where p is the frequency of allele a1 and q is the frequency of allele a2.
Explanation:According to the Hardy-Weinberg principle, the proportion of individuals with genotype a1a2 can be calculated using the formula 2pq, where p is the frequency of allele a1 and q is the frequency of allele a2. In this case, the frequency of a1 is 0.75 and the frequency of a2 is 0.25. Therefore, the proportion of individuals with genotype a1a2 is 2(0.75)(0.25) = 0.375, or 37.5%.
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A steady supply of _________ is needed throughout the body in order for electrons to be accepted at the end of the electron transport chain.
Answer: Oxygen
The cells use oxygen molecules during oxidative phosphorylation. Oxidative phosphorylation is the final stage of cellular respiration which is made up of two closely connected components: 1) the electron transport chain and 2)chemiosmosis.
Oxygen sits at the end of this electron transport chain, where it accepts electrons and picks up protons to form water. If oxygen is not available to accept electrons, the electron transport chain will cease running, and ATP Adenosine triphosphate) will no longer be produced by chemiosmosis. Without enough ATP, cells can’t carry out the reactions they need to function, causing death.
When can confidentiality be breached in health and social care?
why will a radioactive rock never become completely stable?
Excess of neutrons and protons cause large amount of energy in the nucleus, which cause the instability of the radioactive rock.
What is a radioactive rock?
Radioactive rock consist of atoms of radioisotopes like thorium and uranium.
Excess neutrons or protons in an element's atoms provide extra energy in the nucleus.
That cause the atom to become imbalanced or unstable.
Whether and how radioactive elements can also become stable.
Radiation is emitted by the unstable nuclei of radioactive atoms.
Thus, the because of the nucleus, of the radioactive rock never become completely stable.
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what is cytokinesis
Body tissue that is connected to and moves the bones in the body tendon 2. the ability of a muscle to move a weight repeatedly, or for an extended period of time muscle endurance 3. the increase in the size of a muscle fiber in response to resistance training atrophy 4. the most amount of weight a muscle can move at a single time hypertrophy 5. the decrease in the size and strength of a skeletal muscle when it is not used skeletal muscles 6. strong body tissue that connects the muscles to the bones muscle strength
TRUE OR FALSE IF FALSE WRITE THE CORRCT WORDS FOR THE FALSE UNDERLINED ONE TO MAKE CORRECT::::::::::::The purpose of the long hairlike projection called a flagellum on a protozoan is for sexual production. ( sexual reproduction is underlined )
your so dam dramatic.
Help me please!
Darwin hypothesized that there are definite steps to natural selection. Consider the model of bacterial resistance to antibiotics. How would Darwin explain step I?
Question 1 options:
Bacteria adapt to environmental changes.
Some bacteria alter their DNA in response to environmental changes.
In any population, some individuals are weaker than others.
In any population, genetic variation exists.
An ecosystem is effected by many factors. Oxygen, soil, water, amount of sunlight, and temperature are some examples. What type of factor are these examples?
Worldwide how many people are estimated to die each year due to air pollution
Which statement explains the difference between a nerve that is connected to the skin and a nerve that is connected to a muscle? The nerve that is connected to skin is a motor neuron; the nerve that is connected to a muscle is a sensory neuron. The nerve that is connected to skin receives stimuli information from the external environment; the nerve that is connected to a muscle receives processed stimuli information from the brain. The nerve that is connected to skin is part of the central nervous system; the nerve that is connected to a muscle is part of the peripheral nervous system. The nerve that is connected to skin helps the body maintain homeostasis; the nerve that is connected to a muscle supports the body so it can stand upright.
Answer:
Behavior that does not involve the "higher" centers of an animal's brain.
Which structure of a paramecium holds a "reserve copy" of all the cell's genes?
In a Paramecium, the micronucleus holds a 'reserve copy' of all the cell's genes and is essential for sexual reproduction, as well as the formation of a new macronucleus.
In a Paramecium, the structure that holds a "reserve copy" of all the cell's genes is the micronucleus. While the macronucleus manages most of the biological functions such as asexual binary fission, the micronucleus is critical for sexual reproduction and serves as a genetic reservoir. During the sexual reproduction process known as conjugation, the micronucleus undergoes meiosis and subsequent exchange of genetic material with another Paramecium, ensuring genetic diversity. Following conjugation, the micronucleus gives rise to a new macronucleus, thus supporting cellular rejuvenation and ensuring a continuity of the genetic blueprint.
Meiosis produces..?
A.) gametes
B.) somatic cells
C.) body cells
D.) mitotic cells
Blood rich in oxygen and nutrients are transported from the placenta to the fetus by the
Termites are insects that chew on wood. Based on a termites diet, which of the following statements would you expect to be true about its digestive system?
a.) The termite's digestive tract produces fast-acting meat-digesting enzymes.
b.) The termite has flattened molars that grind wood.
c.) The termite has a jaw bone and muscles that are adapted for side-to-side grinding movements.
d.) The termite has a symbiotic relationship with cellulose-digesting microorganisms in its digestive tract
Answer: d.) The termite has a symbiotic relationship with cellulose-digesting microorganisms in its digestive tract.
Explanation:
Termites are the wood eating parasites. They eat wood to meet their nutritional demands. Although there are enzymes present inside the termites which can partially digest the cellulose. But they exhibit a symbiotic relationship with the bacteria present in their gut. The bacteria helps in digestion of rest of the cellulose. In return the bacteria receives shelter and food.
The cells that make up a human body need oxygen at all times. During periods of exercise and activity, the amount of oxygen needed increases. To meet this increased need, the number of breaths per minute during exercise can be sharply higher than the number of breaths per minute while at rest. Which term BEST describes the process by which cells work together to maintain the needed level of oxygen?
A) homeostasis
B) metabolism
C) osmosis
D) respiration
Which two systems provides the molecules needed for the metabolic activity that takes place at ribosomes?
Final answer:
Ribosomes in cells require specific molecules like tRNA and mRNA for metabolic activities.
Explanation:
Ribosomes are the cellular structures responsible for protein synthesis in living cells. They consist of large and small subunits composed of ribosomal RNA (rRNA) and proteins. The molecules needed for the metabolic activity at ribosomes are transfer RNA (tRNA) and messenger RNA (mRNA), along with various enzymatic factors that contribute to the translation process.
Cleaner fish feed off the algae fungi and other microorganisms that are found in larger fish. Other species of fish which look like cleaners are able to approach the larger fish and remove large bites of flesh. If the look alike population outnumber the cleaner fish the A.microorganisms on large fish would decrease B.cleaners and mimics would interbreed C.behavior of large fish would change D.cleaner population would increase
Answer:
C.behavior of large fish would change
Explanation:
thats what jlab says the answer is
Why anatomical and molecular features often fit a similar nested pattern.in addition descibe a orocess that can cause this not to be the case
What is the equation with which you can calculate population density?
Describe the outer covering of a reptile's egg.
The outer covering of a reptiles egg is hard to protect it from harm while growing. :P
I hope this helped :D
Which is visible evidence of energy passing through water?
a sea arch
a density tide
a wave
the Coriolis effect
The correct answer is option C, A wave
Reason -
Waves in water bodies are produced by the entrapped solar energy as of due to the wind blowing across the surface of a water body. These waves are used as a renewable source of energy. The water particles vibrate to transfer the energy in the form of wave which generally move in the forward direction.
Which term do geographers use to classify an area with unifying physical characteristics?
A physical Region is the term used by geographer to classify an area with unifying characteristics. Regions are areas that are extensively characterized by physical features, human influence and relationship between humanity and the environment. An example of a physical region is the Rocky Mountain in the west.
Answer:
physical region/region
Explanation:
When plants make "food" by photosynthesis, they change the energy in sunlight to?
Plants change sunlight into chemical energy through photosynthesis, creating glucose and oxygen from water and carbon dioxide.
When plants make "food" through photosynthesis, they change the energy in sunlight into chemical energy. This fascinating process involves plants taking solar energy and using it to combine water (H₂O) and carbon dioxide (CO₂) to create glucose (C₆H₁₂O₆), which is a carbohydrate, and oxygen (O₂). The light energy harnessed from the sun is transformed into chemical potential energy stored in the glucose molecules. Autotrophs, like plants, capture a specific wavelength of sunlight through chlorophyll and use it during photosynthesis to build these carbohydrate molecules. The glucose produced can then be used by the plant for its growth and development or stored for later use, supporting the energy needs of the plant itself and herbivores that consume the plant matter.
What is likely phenotypic ratio resulting from a dihybrid cross with alleles showing epistatic interactions?
The answer is one (1) phenotype. This is because epistasis interaction of gene alleles involves the masking of one phenotype of an allele of a gene (at one or more loci) by the other. Alternatively, the epistatic alleles may interact to cause a modification of a phenotype.
Final answer:
The phenotypic ratio from a dihybrid cross which includes epistatic interactions differs from the non-epistatic 9:3:3:1 ratio, with the actual ratio depending on the specific nature of the epistatic relationship between the genes involved. One gene may mask the effects of another, altering the expected ratios of phenotypes in the offspring.
Explanation:
The phenotypic ratio resulting from a dihybrid cross with alleles that show epistatic interactions will differ from the classic 9:3:3:1 ratio seen in Mendel's dihybrid crosses with non-interacting genes. This is because epistasis is a form of gene interaction where one gene masks or modifies the expression of another. For example, if one gene's expression is completely dependent on another gene, you might see a modified ratio such as 9:3:4, where the 4 represents the epistatic effect.
In a case of epistasis similar to the one described by the figure, where one gene (C) masks the expression of another (A) for a trait like coat color, the presence of the C allele is necessary for color to be expressed. If it's absent (cc), no color is expressed regardless of the A gene's alleles. Here, the phenotypic ratio can deviate significantly from the typical 9:3:3:1 observed in a dihybrid cross without epistasis. The actual ratio will depend on the specific epistatic relationship between the genes involved.
It's important to remember that the independent assortment of genes and Mendelian inheritance can be altered by various genetic interactions, including epistasis, which must be taken into account when predicting phenotypic ratios in genetics problems.
There are about 100 calories in 30 grams of swiss cheese. ruth ate 70 grams of this cheese. about how many calories were in the cheese that she ate if the number of calories varies directly as the weight of the cheese?
The fluid-like substance contained within the cell membrane, the nucleus not included, is _____. cytoplasm dna rna tissue brainly
Answer:
Cytoplasm is the correct answer
Explanation:
A thick fluid or solution enclosed by cell membrane that fills a cell is called Cytoplasm. Cytoplasm help a cell to maintain it shape. It is composed of water, salts and protein mainly. All cell organelles are found in the cytoplasm, it is highly organized.
Substances like enzyme found in the cytoplasm, help breaking down waste and also helps in metabolic activity.
What is the major gas that increase the greenhouse effect?
Which mechanism restricts the expression of leptin to adipocytes?
why do two-dimensional maps of earth have distortions? A. Earth is three-dimensional, but maps are two-dimensional B. cartography is an inexact science C. cardinal directions do not apply to two-dimensional maps D. They do not include lines of longitude
Answer: Option (A)
Explanation: It is because we cannot represent a three-dimensional object in a two-dimensional maps, without distortion. So in order to reduce this distortion various types of projections are being used such as Mercator projection, Interrupted map projection and Azimuthal projection that helps us in reducing distortion and transform a 3-D object to 2-D.