Answers
In both of them the chromosomes are copied and separated, and the cell divides its cytoplasm to form two new cells.
Related Questions
A father produces sperm that only carry ‘t’ alleles. What is likely to be his genotype?
Answers
Answer:
The Genotype of an organism determines the genetic characteristics of an individual.
If a father produces sperm that carry only 't' alleles, the his genotype will be 'tt' or hom.ozygous genotype.
Hom.ozygous genotype contains the same type of genes responsible for a particular phenotype.
Hence, the correct answer is 'tt' or hom.ozygous genotype.
What is the purpose of the cell wall?
Answers
Answer:
provides tensile strength and protection against mechanical and osmotic stress
Explanation:
its kinda easy
When Charles Darwin published his theory in 1858, many people tried to discredit him. The following drawing of Charles Darwin appeared in a magazine, ‘The Hornet’, on 22 March 1871. Why was Darwin represented in this way?
1. Darwin’s theory was considered primitive.
2. Darwin’s theory was about humans descending from apes.
3. Darwin’s theory challenged religious and societal beliefs of his time.
4. Darwin’s theory was about an animal that was half ape and half human.
Answers
Answer:
Choice 3.
Explanation:
Choice 1 should be immediately deducted, since his theory was original and never mentioned before (atleast on a widescale), thus it could not be considered “primitive”. Choice 2 sounds correct, but is actually wrong due to his theory never mentioning humans descending from apes, rather sharing a common ancestor. Choice 4 is incorrect because Darwin never mentioned any “hybrid animal” that was half-monkey, half-human. Thus, we are left with choice 3.
EDIT: If per say, I am incorrect, the next best answer is probably 2. Some schools have a different evolution education, so perhaps in one’s school they teach choice 2 as fact?
SCIENCE K12 Quiz 4.13 Unit Test Interdependence of Life What happened to the predators in the mid 1950s in response to the decreased prey population? answer will give brainliest
Answers
In response to the decreased prey population, the predators in the mid-1950s likely experienced impacts on their population and behavior.
When prey populations decline, it can have various effects on predators. The decrease in available food resources may result in population decline, increased competition among predators, changes in hunting behavior, or migration to areas with higher prey abundance. Predators may face challenges in finding enough food to sustain their population, which can lead to reduced reproductive success and even population decline. They may also resort to alternative prey species or modify their hunting strategies to adapt to the changing conditions. Additionally, increased competition among predators for limited resources may occur, potentially resulting in shifts in predator-prey dynamics within the ecosystem. The specific response of predators can vary depending on the species, ecosystem, and availability of alternative food sources.
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There is a certain grammar to the genetic code, orrules to follow so that the message can be
effectively translated from DNA into functional
protein.
Codons are y base "words" that code for
specific amino acids. They are
and never
the words.
Answers
Codons are 3 base "words" that code for specific amino acids. They are non-overlapping and never have gaps between the word.
The genetic code (codon) is a series of nucleotide coding sequences in DNA or RNA to determine the sequence of amino acids during protein synthesis. The genetic code used today is a code composed of 3 nitrogenous bases called a triplet codon. There are 4 types of nitrogenous bases namely adenine, uracil, cytosine, and guanine. An example of a codon is the nucleotide sequence ATG (AUG in RNA) which specifies the amino acid methionine.
DNA serves as a pattern for making mRNA, and in turn messenger RNA serves as a pattern for making certain proteins. DNA and the corresponding messenger RNA are made up of a series of bases. In RNA, these bases are often labeled with the letters A, U, C, and G.
The question completely seen picture.
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(T/F) an increase in the volume of our lungs causes inhalation.
Answers
True. An increase in the volume of our lungs causes inhalation.
When we inhale, the volume of our lungs increases, creating a lower pressure inside the lungs relative to the outside air. This difference in pressure causes air to flow into the lungs, bringing in oxygen. Conversely, when we exhale, the volume of our lungs decreases, creating a higher pressure inside the lungs relative to the outside air. This difference in pressure causes air to flow out of the lungs, expelling carbon dioxide.
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3. The structure of a cell nucleus would be seen in the greatest detail by
use of....
A. a compound light microscope
B. an ultracentrifuge
C. a dissecting microscope
D. an electron microscope
Answers
Answer:
D an electron microscope
Explanation:
The reason is electron microscopes have a higher power than light microscopes and can reveal the structure of smaller objects (such as a cell nucleus).
If you have 36 % G bases in your DNA, how many C, A and T’s are there?
Answers
Answer:
C = 36%
A = 14%
T = 14%
Explanation:
G is complimentary to C, so there will be an equal amount of the C base.
36% C
Then, take the sum of the percents found, which comes out to:
36 + 36 = 72%
100% - 72% = 28%
Because A and T are complementary to each other, they will have the same percent of base expression in the DNA.
So, you can just take the 28% we have left and divide it by 2 to get the individual base expression of A and T.
Which will come out to be 14% each.
C = 36%
A = 14%
T = 14%
G = 36% (given)
PLEASE HELP ME PLEASE
Explain the transfer of energy starting with the sun and ending with the decomposers
Answers
Answer:
sun to plants, plants to animals, animals to waste I believe
The cells of collenchyma have evenly thickened cell wall true or false?
Answers
Answer:
False
Explanation:
The cells of collenchyma have evenly thickened cell wall
Please Mark me brainliest
False.. The cells of sclerenchyma have evenly thickened cell wall due to deposition of lignin.. Collenchyma cells are thickened at the corner due to pectin..
What configuration do atoms usually take by forming covalent bonds?
Answers
What can you learn about a sample from an sds-page analysis?
a. the activity of the protein.
b. the structure of the protein.
c. the purity of the protein.
d. the 3d structure of the protin.
Answers
An SDS-PAGE analysis can provide information about the purity of the protein sample.
SDS-PAGE (Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis) is a commonly used technique in molecular biology and biochemistry to separate proteins based on their molecular weight. By subjecting the protein sample to SDS-PAGE analysis, it is possible to determine the purity of the sample by assessing the presence of any impurities or contaminants. The technique separates proteins in the gel based on their size, with smaller proteins migrating faster than larger ones. By comparing the protein bands on the gel to known standards or control samples, it is possible to evaluate the purity of the protein of interest. However, SDS-PAGE does not provide information about the protein's activity, structure, or 3D structure. Its main utility lies in assessing the purity of the protein sample.
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ATP is chemical energy that all cells use. TRUE OR FALSE
Answers
Answer:
True.
Explanation:
True, ATP is chemical energy that all cells use.
Hope this helps!
Answer: True
Explanation:
ATP is a source of energy for cells
how do most protein machines, such as those involved in dna replication and protein synthesis, coordinate their activities? choose one: a. synthesis of protein subunits b. rapid hydrolysis of bound nucleoside triphosphates: atp or gtp c. breakdown of protein subunits d. formation of covalent bonds by dehydration between the protein subunits e. enzyme-mediated phosphorylation of the protein subunits
Answers
Answer:B
Explanation:
As the frequency of a wave on the electromagnetic spectrum decreases, what happens to the wave's energy?
Answers
Answer:
As the frequency decreases, the energy also decreases.
Explanation:
Answer:
It decreases
Explanation:
A P E X
A cell in early interphase has 10 chromosomes. How many chromatids will the same cell have during prophase?.
Answers
Answer:
20
Explanation:
When organisms become more similar by living in the same environment
Answers
Answer:
Convergent evolution is when two (or more) distantly related species independently evolve the same trait or gain a similar function. In math terms, convergence is when two things get really close to each other. For example, bats, birds, and insects are very distantly related but all have evolved the ability to fly.
Explanation:
Hope this helps
During sensation and perception, sensory receptors on the skin transduce information and then send this information to
Answers
The area of the brain located in the parietal lobe, responsible for processing information from sensory receptors on the skin is the somatosensory cortex.
What is somatosensory cortex?It is that brain area responsible for processing and treating information of a sensory nature that comes from the skin, muscles and joints.
Characteristics of somatosensory cortexIt receives and interprets all the information that comes from the tactile system.Sensations of pain, temperature, pressure, as well as the ability to perceive the size, texture, and shape of objects are perceived by this section of the cerebral cortex.Therefore, we can conclude that the sensory receptors receive information from the outside regarding touch, pain and temperature and transmit it to the somatosensory cortex.
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give an example of a change to an organisms external environment
Answers
Answer:
climate
Explanation:
climate or weather change is the best example...
1. After the first and second meiotic divisions of a single oocyte are completed, what has been produced? 2. What cells are associated with pre ovulating follicles and are not associated with primordi
Answers
After the first and second meiotic divisions of a single oocyte, the end result is the production of one large functional ovum (or egg) and three smaller non-functional polar bodies. The cells associated with pre-ovulating follicles are granulosa cells and theca cells.
1. Following the completion of the first meiotic division, the primary oocyte divides into two cells: one larger cell, which is the secondary oocyte, and one smaller polar body. The secondary oocyte then undergoes the second meiotic division, resulting in the production of one large functional ovum and another polar body. The ovum has the potential to be fertilized by sperm and develop into an embryo, while the polar bodies typically disintegrate as they are not involved in the reproductive process.
2. Pre-ovulating follicles are mature follicles in the ovary that are preparing for ovulation. They are characterized by the presence of granulosa cells and theca cells. Granulosa cells are located within the follicle and play a vital role in supporting the development of the oocyte. They provide nourishment, growth factors, and hormonal signals necessary for the maturation of the oocyte. Theca cells, found outside the follicle, contribute to the production of androgens, which are converted into estrogen to support follicular growth and maturation. These cells work together to prepare the follicle for ovulation and subsequent release of the oocyte.
However, primordial follicles represent the earliest stage of follicle development in the ovary. They consist of an immature oocyte surrounded by a layer of flattened follicular cells. Granulosa cells and theca cells are not associated with primordial follicles. As the ovarian cycle progresses, primordial follicles can be activated and undergo a series of developmental stages to eventually become pre-ovulating follicles.
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Manure should be aged before use for the best results.
True
False
Answers
True. Manure should be aged before use for the best results.
Manure should be aged before use for the best results. Aged manure has had time to break down, allowing the nutrients to become more readily available to plants.
Fresh manure can contain high levels of nitrogen, which can burn and damage plants if not allowed to decompose first. Additionally, aged manure is less likely to contain harmful pathogens that can cause plant diseases or pose a health risk to humans.
Aging manure, also known as composting, is an important step in preparing it for use as fertilizer in gardening and farming. Fresh manure can contain high levels of ammonia and other compounds that can damage plant roots and leaves or burn them.
Composting manure for several months helps to break down these compounds, making the nutrients in the manure more accessible to plants and reducing the risk of plant damage. Additionally, composted manure has a more pleasant odor and texture than fresh manure, making it easier to work with.
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There are three distinct categories of papilloma viruses: low-, intermediate-, and high-risk types. Explain what this means.Why is the disease in this encounter rare in humans?If Dede also suffers from tuberculosis and/or hepatitis, how might this complicate his treatment?Would the Gardasil or Cervarix vaccines have prevented this infection in Dede? Why or why not?
Answers
Papilloma viruses are a type of virus that can cause warts or cancer in different parts of the body. There are three distinct categories of papilloma viruses: low-risk, intermediate-risk, and high-risk.
Low-risk types can cause benign warts, intermediate-risk types can cause precancerous lesions, and high-risk types can cause cancer. The risk level is based on the likelihood of the virus causing cancer.
The disease in this encounter is rare in humans because it is caused by a specific type of papilloma virus that is not commonly found in humans. It is more commonly found in animals, such as cows and horses.
If Dede also suffers from tuberculosis and/or hepatitis, this could complicate his treatment because these diseases can weaken the immune system, making it more difficult for the body to fight off the papilloma virus. This could potentially lead to a more severe infection and a higher risk of developing cancer.
The Gardasil and Cervarix vaccines are designed to prevent infection from certain types of papilloma viruses, specifically the high-risk types that can cause cervical cancer. However, these vaccines may not have prevented the infection in Dede because they do not protect against all types of papilloma viruses. It is unclear if the specific type of papilloma virus that caused the infection in Dede is one of the types covered by these vaccines.
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In the spleen, ___________ from red blood cells is broken down to form (unconjugated) bilirubin. Unconjugated bilirubin is insoluble in blood plasma so binds to albumens in the blood and is sent to the ______. Bilirubin ___________ with glucuronic acid to form conjugated bilirubin. It forms part of the bile, which is ______ in the gall bladder. Food in the gut stimulates gall bladder contraction and the bile passes down the ____ ____ to the _____ _________, where it aids in the digestion of ______.
Answers
Answer:
Haemoglobin; liver; binds; stored; bile duct; small intestine; lipids.
Explanation:
Serology can be defined as the study of blood and the reactions between antibodies and antigens in the blood.
In Biology, blood pH can be defined as a measure of the hydrogen ion (H¯) concentration of blood i.e the level of alkalinity or acidity of blood.
Basically, the normal blood pH of a human being should be between 7.35 and 7.45.
Hence, one of the ways in which the body regulates blood pH is with proteins. Proteins help regulate blood pH by accepting and releasing hydrogen ions. Typically, when the blood pH falls, the hydrogen ions (H¯) are accepted (absorbed) while hydrogen ions are released when the blood pH rises.
For example, a protein such as haemoglobin which makes up a composition of the red blood cells, binds an amount of acid required to regulate blood pH.
In the spleen, haemoglobin from red blood cells is broken down to form (unconjugated) bilirubin. Unconjugated bilirubin is insoluble in blood plasma so binds to albumens in the blood and is sent to the liver. Bilirubin binds with glucuronic acid to form conjugated bilirubin. It forms part of the bile, which is stored in the gall bladder. Food in the gut stimulates gall bladder contraction and the bile passes down the bile duct to the small intestine, where it aids in the digestion of lipids.
PLEASE HELP ME- In humans, tongue rolling is dominant over non-rolling. A man who can roll his tongue marries a woman who cannot. They have 8 children, of which 6 can roll
children?
А Rr
B rr
ОООО
с RR
D 6R
Answers
which of the following are correctly matched? a. primary sex characteristic- the development of breasts in females b. primary sex characteristic- the development of muscles in males c. secondary sex characteristic- the production of sperm in males d. secondary sex characteristic- the widening of hips in females
Answers
The correct match is d. secondary sex characteristic- the widening of hips in females. Primary characteristics are the physical features that are present at birth and are directly related to the reproductive system. These include the presence of ovaries and testes, as well as the internal and external genitalia.
Secondary characteristics, on the other hand, are the physical changes that occur during puberty but are not directly related to the reproductive system. These changes include the growth of body hair, changes in voice pitch, and the development of breasts in females and the growth of muscles in males.
Out of the given options, the only correct match is d. secondary characteristic- the widening of in females. This is because the widening of in females is a typical secondary characteristic that occurs during puberty and is not directly related to the reproductive system. The other options are incorrect because the development of breasts in females is a primary characteristic, while the production of sperm in males is also a primary characteristic. The development of muscles in males is not a sex characteristic at all but rather a result of physical activity and exercise.
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1. Bakit kailangan isagawa ang air layering o marcotting?
Answers
Answer:
Ginagawa ang marcotting upang maparami ang halaman. Ginagamit dito ay ang sanga ng isang halaman. Binabalatan ito at ibinabalot sa lupa o balat ng niyog saka babalutan ng plastic na supot hanggang sa tumubo ang mga ugat nito, pagkatapos tumubo ang mga ugat nito ay saka puputulin ang sanga at ito ang itatanim sa lupa upang magkaroon ng panibagong halaman. Madalas ginagamit ito sa mga puno na matagal tumubo.
Explanation:
qui __________ put(s) finishing touches on proteins synthesized at and __________ package them for export out of the cell
Answers
The Golgi apparatus puts finishing touches on proteins synthesized at the endoplasmic reticulum and packages them for export out of the cell.
The Golgi apparatus is a complex organelle consisting of flattened sacs called cisternae. It is involved in the sorting, modification, and packaging of proteins and lipids for transport to their final destinations. The Golgi receives newly synthesized proteins from the endoplasmic reticulum and modifies them by adding or removing sugars, lipids, or phosphate groups. It then sorts the modified proteins and packages them into vesicles for transport to their final destinations, such as the plasma membrane or extracellular space. The Golgi apparatus puts finishing touches on proteins synthesized at the endoplasmic reticulum and packages them for export out of the cell.
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In this pedigree, 1-2 is
because they are shaded in.
Answers
Answer:
is affected ( has the trait)
Explanation:
Plant seedlings were treated with a range of concentrations of coumarin, a small organic compound. After one week, seedling height was taken as a measure of plant growth. In a separate experiment, stem tissue sections were taken from newly germinated seedlings and incubated in solutions containing 14C-glucose and coumarin. After 24 hours, the quantity of radioactive label in cytoplasmic and cell wall fractions was measured. All data are shown in the table above. Which statement is supported by these results
Answers
Coumarin is found to restrict the production of a specific component found in the cell walls but not in the cytoplasm, which plays an important role in the growth of the stem. (BIOSYNTHESIS< CYTO< STEM GROWTH)
The results from the experiment suggest that coumarin treatment negatively impacts the growth of plant seedlings, as measured by seedling height. This indicates that coumarin has an inhibitory effect on stem growth.
Additionally, the experiment that measured the number of radioactive labels in cytoplasmic and cell wall fractions revealed that coumarin affects the biosynthesis of a specific component in the cell walls but not in the cytoplasm. This suggests that coumarin specifically targets the production of a component that is critical for stem growth, and that this component is found primarily in the cell walls and not in the cytoplasm.
This is further supported by the fact that the radioactive label is found in the cell wall but not in the cytoplasm, indicating that the biosynthesis of this component is taking place in the cell wall and not in the cytoplasm. Overall, these results suggest that coumarin is inhibiting the biosynthesis of a component that is critical for stem growth, specifically in the cell walls.
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describe the process by which a germ cell’s complement of chromosomes is halved in the formation of gametes.
Answers
The process by which a germ cell’s complement of chromosomes is halved in the formation of gametes is called meiosis.
Meiosis is a type of cell division that reduces the number of chromosomes in a germ cell by half, resulting in four haploid (n) daughter cells, each with half the number of chromosomes (half the genetic material) of the parent cell. The process of meiosis begins with a diploid (2n) parent cell containing two sets of chromosomes (one from the mother and one from the father). During prophase I, the chromosomes condense and the nuclear membrane breaks down. Homologous chromosomes (chromosomes with similar genetic information) pair up to form tetrads. During metaphase I, the tetrads line up on the metaphase plate. At anaphase I, the homologous chromosomes separate and move to opposite ends of the cell. Then, during telophase I, the cell divides and two daughter cells are formed.
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