Answer:
D. It can change a few bases in a piece of mutated DNA.
It can change a few bases in a piece of mutated DNA. Therefore, option (D) is correct.
What is gene editing?Gene editing is a powerful technique used to modify the DNA sequence in an organism's genome. It allows scientists to make precise changes to the genetic code by adding, deleting, or altering specific DNA segments. The most widely used gene editing tool is CRISPR-Cas9, which utilizes a guide RNA to target specific locations in the genome and the Cas9 protein to cut the DNA at those sites.
Gene editing holds significant potential in various fields, including medical research. It offers opportunities to study gene function, investigate disease mechanisms, and develop potential treatments for genetic disorders. By correcting disease-causing mutations or introducing therapeutic genes, gene editing can provide new possibilities for precision medicine and personalized therapies.
However, ethical considerations and careful evaluation of potential risks and benefits are essential when applying gene editing technologies to ensure their responsible and safe use
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The relative concentration of water in a hypotonic solution is _____. low high stable equal
Answer:
The correct answer is high.
Explanation:
Hypotonic solution is a specific type of solution in which the concentration of water molecules is high than that of solute molecules present within that solution.
Which of the following is true about prokaryotic and eukaryotic cells
Answer:
am NT sure
Explanation:
by I do think that a prokaryotic cell lacks a nucleus while a eukaryotic has a nucleus
Describe the biotic and abiotic features of the tropical rain forest
The observed redshifts of galaxies are evidence for the Big Bang Theory of the origin of the universe because they indicate that
Answer:
Are moving rapidly away in all directions
Explanation:
Edwin Hubble discovered in 1929 that the distance to far away galaxies were generally proportional to their red shifts astronomers viewing distant stars see evidence of this expansion evidence of red shift
I hope this helps Mate :) Sorry im late
Which statement summarizes the main purpose of photosynthesis?
olide in the form of sugar
Explanation:
Complete question...
a) It converts gases to solids in the form of sugar.
b) It converts carbon to oxygen.
c) It converts light energy to chemical energy.
d) It converts energy to mass.
c) summarizes the main purpose of photosynthesis.
Carbon and oxygen from carbon dioxide and water end up as part of a glucose molecule while oxygen is released into the atmosphere.
Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released.
Further Explanation:
This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. This begins in the thykaloids, where pigment molecules like chlorophyll reside.
The chloroplast is a membrane-bound organelle found in plants. It contains several invaginations of a plasma membrane called the thylakoid membrane. This contains chlorophyll pigments, in stacks called granum, while the internal spaces of the organelle are called the lumen. Liquid surrounds the granum, forming the stroma.
Particles of light, and water is used as a reducing agent.
6CO2 + 6H20 + (energy) → C6H12O6 + 6O2
Carbon dioxide + water + energy= glucose + oxygen
Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II. Additionally, water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ions. NADP and NADPH are integral to the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules.
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Match the following membrane component names with the correct letters in the cell membrane diagram below.
1.Phospholipids
2.Integral membrane protein
3.Carbohydrate chain
4.Cholesterol
Match the following membrane component functions with the correct letters in the cell membrane diagram below.
5. Helps identify a cell to macromolecules and other cells
6.Used to move large molecules through the membrane that cannot pass through by simple diffusion
7. Helps stabilize the lipid (phospholipid) bi-layer
8. Makes up most of the cell membrane
Answer:
The correct matching is given below.
Explanation:
1 phospholipid 8 makes up most of the cell membrane
2 integral membrane protein 6 used to move large molecules through the membrane that cannot pass through by simple diffusion.
3 Carbohydrate chain 5 helps identify a cell to macromolecules and other cells.
4 cholesterol 7 helps to staibilize the lipid(phospholipid ) bi-layer.
Cells in a large multicellular organism communicate with each other by chemical signals. These signals are passed from one cell to another. To receive and respond to a chemical signal, a cell must have a --------------for that chemical.
Answer:
Cells in a large multicellular organism communicate with each other by chemical signals. These signals are passed from one cell to another. To receive and respond to a chemical signal, a cell must have a receptor for that chemical.
Explanation:
To generate a physiological response, all cells in the body have special proteins called receptors. These receptors are involved in detecting a chemical signal and generating a response. The receptors are specific for different kind of chemical signals. For example, a dopamine receptor will bind a dopamine molecule whereas an insulin receptor will be able to bind an insulin molecule. Apart from chemical signals, some cells might also respond to mechanical signals.
Cells in a large multicellular organism communicate with each other through chemical signaling. To receive and respond to a chemical signal, a cell must have a receptor for that chemical.
Explanation:In multicellular organisms, cells communicate with each other through chemical signaling.
Chemical signals are passed from one cell to another, allowing cells to coordinate and fine-tune their functions.
To receive and respond to a chemical signal, a cell must have a receptor for that specific chemical.
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The central dogma of molecular biology is centered upon the process of _________, in which the information from DNA is transcribed and translated, resulting in amino acids being joined into polypeptides.
A) replication
B) translation
C) protein synthesis
D) carbohydrate synthesis
Answer:
protein synthesis
Explanation:
During the process of transcription DNA is used as a primer to produce a messenger RNA, catalyzed by the enzyme RNA polymerase. This process takes place in the nucleus of a cell.
The mRNA is transported to cytoplasm after processing or what we call splicing, to remove non-coding regions of RNA.
In the cytoplasm the process of translation takes place in the organelles called ribosomes where the tRNA with the anticodons reads the codons on the mRNA forming amino acids that are joined together to form polypeptides and proteins.
Answer:
The central dogma of molecular biology is centered upon the process of protein synthesis, in which the information from DNA is transcribed and translated, resulting in amino acids being joined into polypeptides.
Place the following words into the illustration below: Gametes, sporophyte, gametophyte, and zygote. Explain each step (arrow) in the cycle, and how the terms are related.
Answer:
1. gametophyte
2. gamete
3. zygote
4. sporophyte
Explanation:
The life cycle of ferns has two systems for reproduction. Each system is known as one generation. The life cycle of ferns is an alteration of these generations.
1. sporophyte generation (release spores - diploid )
2. gametophyte generation (release gametes - haploid)
In genetics, diploid cells receive two sets of the chromosome from male and female parents. A haploid cell has only one set of chromosomes.
Spores grow on the surface of mature fern leaves. The haploid spores give rise to gametophytes. The gametophyte produces gametes within multicellular structures by the process of mitosis. The fusion of male and female gametes to form a diploid zygote under fertilization. The development of the zygote gives rise to a diploid sporophyte. Within the sporophyte, spores will be formed by meiosis.
Here Is What I put...
The modern model of the atom describes electrons in a little less specific detail than earlier models did. Why is it that being less sure about the placement of electrons in an atom is actually an improvement over earlier models?
The modern model of atom is unable to show the speed of atoms which make it less sure about its improved version.
Explanation:
The atomic model has under-went a drastic change in the past few decades. The first model was developed by Demoncritus in 450 B.C. which was accurate about the existence of atom as matter particles but he was inaccurate about the divisibility of matters.
Many other scientists have developed various models of atom over time, they are- John Dalton(1800), J.J. Thompson(1897), Ernest Rutherford( 1899), Neils Bohr. Neils Borh talked about the nucleus in his model and about the electrons orbiting the nucleus. However, this modern model lacked the observation of the speed of electrons.
Answer:
The modern model of atom is unable to show the speed of atoms which make it less sure about its improved version.
Explanation:
what is the sequence of events in Mendel's experiment with the pea plant?
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Mendel's experiment with the pea plant involved identifying plants that bred true and selectively breeding purebred plants. He performed hybridizations to study the characteristics of the offspring.
Explanation:Mendel's experiment with the pea plant involved several stages. He first identified plants that bred true, meaning they produced offspring that were the same as the parents. These parent plants are referred to as the P generation. Mendel then selectively bred only the purebred plants that always bred true, called the P1 generation. He continued to experiment with true-breeding plants to avoid the appearance of unexpected traits in offspring. Mendel performed hybridizations, mating two true-breeding individuals with different traits, to study the characteristics of their offspring.
Find amino acid for the mRNA code AAG
Answer:
phenylalanine
Explanation:
A base set of triplet called codon codes for a particular amino acid of protein molecule. Protein synthesis takes place in ribosomes found in the cytoplasm. Information on the mRNA is translated by ribosomes and is used to assemble amino acids into specific protein molecules.
The blood vessel that carries blood into the glomerulus is called the:
afferent arteriole
O vasa recta
peritubular capillary
O
efferent arteriole
arcuate artery
interlobular artery
Answer:
Afferent arteriole
Explanation:
A glomerulus is formed from the afferent blood vessels, a branch from the renal artery. The afferent arteriole collects blood from the glomerulus and extends to the renal tubule where it divides into capillaries that ramify the tubule. The afferent arteriole is wider than the efferent arteriole.
______ are found in the stroma of chloroplasts small coins that provide energy. numerous mitochondrial membranes. stacks of thylakoids called grana. organelles called eukaryotes
Answer:
The correct answer is small coins that provide energy
Explanation:
Small coins structures are found in chloroplast which are termed as thylakoid.There are stacks like arrangement of thylakoids within the granum.
The Surface area of thylakoids is being increased by grana as a result more light is absorbed by the chloroplast.
The thylakoid of granum is the site of light reaction.
Susana heats up a sample of red crystals. While the sample is being heated, a gas is released and a blue powder is left after the heating. Is the sample of red crystals an element or a compound? Explain your answer.
MY ANSWER:
The red crystals are compounds. This is because when the sample is heated, a GAS (element) is released and BLUE POWDER (element) is left. Two elements make up these red crystals. A compound can also be shown through color change - the RED crystals, when heated, turn into BLUE powder. Elements cannot be broken down into substances using physical force, like heating. So yes, this is a compound.
SAMPLE ANSWER:
Susana's red crystal sample is a compound because it was broken down into a gas and blue powder. It is not an element because elements cannot be broken down into simpler substances by ordinary means, such as heating.
MAKE SURE TO INCLUDE AND ELABORATE ON THE FACT(S) THAT:
- Elements cannot be broken down into simpler substances.
[and]
- Compounds can be broken down into simpler substances.
I hope this helps! I wanted to post this for the help of future searchers.
Answer:
You can use either your answer or the sample answer you gave. You are so nice by the way!
Explanation:
THE FOLLOWING ARE TWO ANSWERS YOU CAN CHOOSE FROM
ANSWER 1:
The red crystals are compounds. This is because when the sample is heated, a GAS (element) is released and BLUE POWDER (element) is left. Two elements make up these red crystals. A compound can also be shown through color change - the RED crystals, when heated, turn into BLUE powder. Elements cannot be broken down into substances using physical force, like heating. So yes, this is a compound.
ANSWER 2:
The red crystals are compounds. This is because when the sample is heated, a GAS (element) is released and BLUE POWDER (element) is left. Two elements make up these red crystals. A compound can also be shown through color change - the RED crystals, when heated, turn into BLUE powder. Elements cannot be broken down into substances using physical force, like heating. So yes, this is a compound.
EITHER ONE YOU CHOOSE WILL BE CORRECT, JUST SAYING!
Describe the term Xylem
Answer:
the tissue in plants that conducts water and nutrients upwards from the root
Mary has type A blood. Her son Bill has type AB blood. Which blood type does Bill's dad have if he is homogenous for blood
type?
B
O AB
0
Answer:
Bill's dad has blood type B
Explanation:
See punnet squares attached
It's given that the dad's blood type is homogenous -> the two letters must be the same. So we can eliminate AB, we have B and O as the options left
If the dad's blood type is O, using punnet square, we can figure out that it then would be impossible for Bill to have blood type AB (AO = blood type A) --> Incorrect
If the dad's blood type is B, using punnet square, we see that the probability that Bill has blood type AB is 100%
Answer:
B, Bill has blood type B) on edge 2020
Which event would most likely throw off dynamic equilibrium in an ecosystem? a lengthy drought, the birth of a litter of rabbits, a hunter killing a deer the death of several plants
A lengthy drought is the event most likely to disrupt dynamic equilibrium in an ecosystem due to the critical role of water in maintaining plant and animal life, and the cascading effects on food chains and survival of species.
Droughts can have severe impacts on ecosystems, as they can lead to a shortage of water resources, which are critical for the survival of plants and animals. For example, in the Four Corners area, a lengthy drought was associated with a vegetation increase followed by a rise in the deer mice population, which led to the outbreak of Hantavirus in humans. Additionally, droughts can disrupt food chains by causing the death of plants, which are the primary producers in most ecosystems. Changes in vegetation can also lead to mismatches in food availability for animals that rely on certain plants. The death of several plants, which might occur as a result of a drought, also affects ecosystems but typically on a smaller scale than a prolonged absence of rain.
What can be inferred about the role of a ribosome
In a mitochondria chemical energy becomes available to cells through a process called
Answer:
Oxidative phosphorylation.
Explanation:
Mitochondria use oxygen, which is available within the cell to convert chemical energy from food in the cell to energy in the usable form to the host cell. This process is called oxidative phosphorylation. It occurs inside of the mitochondria. In the matrix of mitochondria, the production of NADH happens by the citric acid or Krebs cycle. After the creation of NADH, it is used by enzymes that are fixed in the mitochondrial inner membrane to produce ATP. Energy is stored in the ATP as a form of chemical bonds.
These bonds can be opened, and the energy can be delivered.
1 The effect of temperature on photosynthesis was investigated using the apparatus
shown in Figure 1.
OT WRITE IN THIS AREA
DO NOT WRITE IN THIS =
pondweed
in test tube
light
light meter
Figure 1
(a) Complete the equation for photosynthesis.
light
carbon dioxide + water –
water chlorophyll
glucose
SC
+ oxyger
(b) The pondweed was placed in a test tube of water at 10°C.
The number of bubbles of gas produced by the pondweed in three minutes was recorded.
This was repeated with water at different temperatures.
The light intensity was kept constant for each temperature.
(i) State why the light intensity absorbed by the pondweed is not the same as
the light intensity measured by the light meter.
(ii) Give two ways of improving this investigation.
The complete equation for photosynthesis is carbon dioxide + water producing glucose and oxygen, with light and chlorophyll vital to the process. Light intensity as measured may differ from what's absorbed by the pondweed due to multiple factors, and enhancements to the study can be made by controlling CO2 concentration and maintaining consistent temperature conditions.
(a) The complete equation for photosynthesis is:
carbon dioxide + water → glucose + oxygen, with light and chlorophyll as essential components for this process.
(b)(i) The light intensity absorbed by the pondweed is not the same as the light intensity measured by the light meter because of factors such as reflection, refraction, and absorption by the water, test tube, and other components of the apparatus, which can affect the actual intensity reaching the plant.
(b)(ii) Two ways of improving this investigation includes controlling for CO2 concentration, as CO2 availability can limit the rate of photosynthesis, and ensuring that the temperature remains consistent throughout the experiment, as temperature can affect the enzyme activity and gas solubility in the water, impacting photosynthesis.
Are all organisms with similar physical characteristics related to one another? If not, why?
Answer:
Yes, all organisms with similar physical characteristics are related to one another.
Explanation:
Species that have common characteristics are closely related. They can even interbreed with one another. The ones with similar physical characteristics tend to be closer than others. Species may share same physical characteristics because they had common ancestors.
Scientists make a comparison of the DNA of the organisms and find that species with same DNA are related to each other. Two similar organisms may also evolve with time to adapt to their surroundings. There would be different reasons for their evolution. In a nutshell, they are closely related contributing to the ecosystem.
Answer: Yes all organisms with similar physical characteristics related to one another
Explanation: Common ancestor
1. What is a predator?
2. Are all predators animals?
Give examples to support your answer.
Your answer should include at least three complete sentences.
Answer:
There are four commonly recognized types of predation: (1) carnivory, (2) herbivory, (3) parasitism, and (4) mutualism. Each type of predation can by categorized based on whether or not it results in the death of the prey.
Explanation:
Some examples of predator and prey are lion and zebra, bear and fish, and fox and rabbit. The words "predator" and "prey" are almost always used to mean only animals that eat animals, but the same concept also applies to plants: Bear and berry, rabbit and lettuce, grasshopper and leaf.The best-known examples of predation involve carnivorous interactions, in which one animal consumes another. Think of wolves hunting moose, owls hunting mice, or shrews hunting worms and insects.
what is the basic skeletal pattern of all limbs of animals on earth?
Answer:
The common plan for all limbs: one bone, followed by two bones, then little blobs, then fingers or toes. For Owen, seeing a design in the limbs was only the beginning: when he looked at skulls and backbones, indeed when he considered the entire architecture of the body
The basic skeletal pattern of all limbs in animals on Earth follows a common structure known as the "pentadactyl limb." This term refers to a limb with five distinct segments or digits. The pentadactyl limb is a fundamental feature shared by many vertebrates, including mammals, reptiles, birds, and amphibians.
The pentadactyl limb consists of the following segments, starting from the body and extending outward:
Humerus/Femur: This is the uppermost bone, connecting the limb to the body. In the forelimbs (arms or wings), it's called the humerus, while in the hindlimbs (legs), it's called the femur.
Radius and Ulna/Tibia and Fibula: These are the bones of the lower arm (forelimb) or lower leg (hindlimb). In animals with pentadactyl limbs, there are typically two bones in this segment. The radius and ulna are found in the forelimb, while the tibia and fibula are present in the hindlimb.
Carpals/Tarsals: These are the bones of the wrist (forelimb) or ankle (hindlimb). They form a cluster of small bones that provide flexibility to the limb.
Metacarpals/Metatarsals: These are the bones of the palm (forelimb) or the sole (hindlimb). They connect the carpals/tarsals to the digits.
Digits/Phalanges: These are the individual bones of the fingers or toes. In the pentadactyl pattern, there are typically five digits, although some animals have fewer due to evolutionary adaptations.
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Substances diffuse naturally from an area of higher to lower
Explanation:
Substances diffuse naturally from an area of higher to lower concentration.
Via diffusion, small molecules can move from regions of high concentration to regions of low concentration until an equilibrium- a stable balance of solute: solvent, is reached. This occurs along the concentration gradient of the molecule, and usually involves small non-polar molecules in cells such as oxygen and carbon dioxide. In cellular transport, diffusion is also referred to as passive transport.
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Pre-Lab Work
1. Design an Experiment: What is the independent variable in this experiment (i.e., the
variable that you manipulate)?
what happens to the particles when you put a metal spoon into a pot of boiling water.
Which of the following is not a response?
a tree turning its leaves towards the sun
a mushroom appearing wet in the rain
a protozoa contracting when touched
your stomach rumbling when you smell food
Answer:
The correct option is B) a mushroom appearing wet in the rain.
Explanation:
A response is generated when a living body detects a change or event as a signal or a stimulus.
In the option A, the Sun acts as a stimulus. The response is the tree turning its leaves.
In the option C, touch is the stimulus. The contraction of the protozoa is the response.
In the option D, the smell of food is the stimulus. Rumbling of the stomach is the response.
In the Option B, no response is carried out by the mushroom. Hence option B does not show an action or response.
Answer:
B. A mushroom appearing wet in the rain.
Explanation:
It is not a response it just looks wet when it is in the rain.
In a pedigree, a vertical line and a bracket connect _____. siblings to each other parents to their children husbands to wives
Answer:
In a pedigree, a vertical line and a bracket connect parents to their children.
Explanation:
A pedigree can be described as a diagram which depicts the lineage of a person and shows his/her ancestors in a pattern. A pedigree is very helpful in understanding any genetic disorders which occur in a family. It helps the doctor conclude that whether the parents will have the probability of having a normal child or not.
In a Pedigree, a vertical line will be drawn to show the parents and their children. A horizontal line is drawn between the parents.
Answer:
parents to their children
Explanation:
gradpoint
Scientists show the composition of compounds by a kind of shorthand known as a chemical formula.
OT
OF
Answer:
True
Explanation: