Each body cell of a chimpanzee contains 48 chromosomes. After mitosis, how many chromosomes are present in each cell?
Answer:
During both mitosis and meiosis, DNA replicates first during S phase of interphase. Each copy (DNA molecule) is called chromatid. Before anaphase they remain together, joined by the centromere in the chromosome.
Part 1: How many chromatids and chromosomes are present at:
(a) anaphase of mitosis: During this phase sister chromatids split. We would have 48 chromosomes in each pole and 48 chromatides.
(b) anaphase I of meiosis: During this phase homologous chromosomes split, being a reductional division. In each pole we will have half the chromosomes we had after DNA replication. This is 24 chromosomes but 48 chromatides (remember they will split during anaphase II).
(c) anaphase II of meiosis: This is an equational division, we will have 24 chromosomes in each pole and 24 chromatides. Each chromatid is considered a chromosome.
(d) G1 prior to mitosis: During this phase DNA has not replicated yet and it is not condensed either. This formed is called chromatin. We will assign one chromatid for each chromosome. This is a somatic cell, so: 48 chromosomes and 48 chromatids.
(e) G2 prior to mitosis: After S phase, we have duplicated all chromosomes. We will assign two chromatids per chromosome: this is 96 chromatides and 48 chromosomes.
(f) G1 prior to meiosis: Before DNA duplication, 48 chromosomes, 48 chromatids.
(g) Prophase of meiosis I: After DNA replication, condensation of the chromatin takes place: 48 chromosomes, 96 chromatids.
Part 2: How many chromatids or chromosomes are present in:
(h) An oogonial cell prior to S phase: This is G1 phase, 48 chromosomes.
(i) A spermatide: This is the male haploid gametid, after meiosis: 24 chromosomes and 24 chromatids.
(j) A primary oocyte arrested prior to ovulation: They are arrested at prophase I of meiosis. This means their DNA is still duplicated and chromatides have not divided yet. 48 chromosomes and 96 chromatids.
(k) A secondary oocyte arrested prior to fertilization: They are halted at metaphase II of meiosis, meaning they have half the chromosomes (24) but chromatids are still together (48).
(l) A second polar body: They suffered the same process as the mature ovum but remained with little cytoplasm. They have 24 chromosomes and 24 chromatids.
(m) A chimpanzee sperm: They have completed both meiosis as well, they have 24 chromosomes and 24 chromatids.
Explanation:
Mitosis is a type of cell division in which the number of chromosomes in the parent cell is similar to the daughter cell. Mitosis occurs in the somatic cells.
The chromosomes present in the Chimpanzee's cell after mitosis are 48 chromosomes.
The mitosis can be explained as:
1. Mitosis is a type of cell division in which the number of chromosomes in the daughter and parent cells are similar.
2. During the DNA replication process, the DNA is duplicated and separated into the individual two daughter cells.
Thus, the cells with 48 chromosomes will give rise to daughter cells consisting of 48 chromosomes.
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A scientist is studying specialized cells that help pump blood. Which cells is she most likely studying?
neurons, which are a type of muscle cell
cardiac cells, which are a type of muscle cell
epithelial cells, which are a type of blood cell
white blood cells, which are a type of blood cell
Answer:cardiac cells
Explanation:
The heart pumps blood and cardiac cells are found in the heart
What is the advantage of genetic connections and disadvantage
Answer:
A sense of relief from uncertainty.
it reduced the risk of cancer
anybody can help me with this ?
- 40 points .
Answer:
Explanation:
Endangered species because if the poachers keep hunting for its horns they may be extinct in few years
In the 1950s, the structure of DNA was discovered by using models and x-ray chromatography. Currently, science has used advanced technology to completely map out the genes in a human’s body. What would be the best advantage of using this information?
Answer:
Recently around 2008 i believe a female scientist found the end of our chromosomes and what the enzyme telomerase did.
Explanation:
What was awesome was they telomerase fixes the small fragements of DNA that degrade over time. A study was done on mine one was treated with the enzyme the other was not keep in mind the mice were old. The reated mice actually seemed to reverse age because its fur became shinier and its bones strong it just seemed healtehr and it was. The other of course stayed old. So the discoveries help push our life expectancy farther than we used to think was convinient
Answer:
gene therapy to correct defective genes that cause diseases.
Explanation: i hope this is right.
Why were garden peas a good choice for a study of heredity?
Answer:
pea plants because they were easy to grow, could be bred rapidly, and several observable characteristics, like petal color and pea color.
Explanation:
What are the primary processes that increase genetic variability?
A. sexual reproduction and mutations
B. cloning and binary fission
C. asexual reproduction and mitosis
D. budding and recombination
Answer:
A
Explanation:
what is abberant motor behavior
Answer:
according to whether the "activity disturbance"
Explanation:
brainest plz
Answer:
dunno tbh g
Explanation:
Do to Mendel's law of segregation ....?
A) homologous chromosomes pair up and cross during prophase 1 of meiosis
B) alleles belonging to the same gene will never end up in the same gamete during mitosis
C) alleles belonging to the same gene will never end up in the same gamete during meiosis
D) genes located on non-homologous chromosomes sort independently of one another during the formation of gametes
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Answer: A
Explanation:
Cytoplasm is found...
A only in prokaryotic cells.
B in all cells.
C. in plant cells only.
Answer:
C i think
Explanation:
sorry if its wrong :(
Glycolysis results in the net production of which of the following sets of molecules per glucose molecule?
Answer:
Glycolosis has a net gain of 2 atp
Explanation:
It produces 4 but you invest 2 to start so its only net gain of 2
You also ge 2 pyruvate and 2 NADH
Two pyruvate molecules, two ATP molecules, and two NADH molecules are the substances produced in the process of glycolysis.
These substances are gained from glucose in order to generate energy which is needed in different activities of the cell. ATP is the molecule which is used by the cell for doing activities which needs energy.
Both pyruvate and NADH molecules are also converted into ATP molecules in the end and used by the cell so we can conclude that in the process of glycolysis, two pyruvate, two ATP, and two NADH molecules are formed.
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1. B= Brown eyes b= blue eyes Mom= Bb Dad= BB What percentage of their children will have Brown eyes and what percentage will have blue eyes?
% of Brown eyes-
% of Blue eyes-
Please help me to do this thank you
1 .Electrophoresis is a laboratory technique used to separate DNA, RNA, or protein molecules based on their size and electrical charge.
2.Gel electrophoresis is a technique used to separate DNA fragments (or other macromolecules, such as RNA and proteins) based on their size and charge.
... [All DNA molecules have the same amount of charge per mass. Because of this, gel electrophoresis of DNA fragments separates them based on size only.]
3.Gel electrophoresis [ pls chck tiz answer!]
4.DNA is negatively charged, therefore, when an electric current is applied to the gel, DNA will migrate towards the positively charged electrode. Shorter strands of DNA move more quickly through the gel than longer strands resulting in the fragments being arranged in order of size.
5.A buffer is a solution that can resist pH change upon the addition of an acidic or basic components. It is able to neutralize small amounts of added acid or base, thus maintaining the pH of the solution relatively stable.
Why buffer is used in electrophoresis?High-quality buffers are an important part of electrophoresis. They allow a current to be carried through the sample while resisting pH changes in the overall solution.
Deletion of a DNA base from a gene affects an organism by—
Causing future gametes to have additional chromosomes
Changing the sequence of amino acids in a protein
Causing chromosome fragments to form long chains
Changing the structure of ribose sugar in nucleic acids
Answer:
Deletion of a DNA base from a gene affects an organism by changing the sequence of amino acids in a protein.
Explanation:
A DNA fragment forms a gene, with a specific sequence of nitrogenous bases, which determines the synthesis of a specific protein. When a deletion of a base occurs in such a gene, it affects:
Transcription of the mRNA, which will have the sequence of altered bases. During translation, the mRNA codons will encode at least one different amino acid. The structure of the synthesized protein, which will be altered by changes in its amino acid sequence.In summary, the deletion of a base in the DNA will affect the protein to be synthesized by changing the amino acid sequence of its structure.
The other options are not possible, because the deletion of a base in the DNA of a gene
Does not influence the number of chromosomes that the gametes will have.
It does not produce long chains in the chromosomes.
It does not affect the ribose structure of the nucleic acids.
Deletion of a DNA base from a gene affects an organism by :
B) Changing the sequence of amino acids in a protein.
DNADeletion of a DNA base from a gene affects an organism by the changing the sequence of amino acids in a protein.
A DNA part shapes a quality, with a particular arrangement of nitrogenous bases, which decides the blend of a particular protein. When a erasure of a base happens in such a quality.
Transcription of the mRNA, which is able have the arrangement of changed bases.
The structure of the synthesized protein, which can be changed by changes in its amino corrosive sequence.
Thus, the correct answer is B.
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which bases are found in a strand of DNA
Answer:
Nitrogen Bases: Adenine, Thymine, Cytosine, Guanine
Explanation:
Adenine and Thymine pair together (Apples on the Trees)
Cytosine and Guanine pair together (Cars in the Garage)
DNA replication results in two identical daughter molecules each consisting of one old (original) strand and one newly-synthesized strand.
True
False
Answer:
true
Explanation:
please mark me brainliest
DNA replication results in two identical daughter molecules each consisting of one old (original) strand and one newly-synthesized strand. Therefore, it is true.
What is DNA replication?The process of duplicating the parent DNA helix into two identical daughter helices is known as DNA replication. One parent strand is passed down to each daughter strand in this semi-conservative procedure.
In prokaryotic cells, DNA replication takes place in the nucleoid area, whereas it happens in the nucleus in eukaryotic cells. Prior to cell division, DNA replication takes place in the S phase of the cell cycle.
Replication fork pairs that form at the origins of replication and then move in opposition to one another carryout genome duplication. When convergent replication forks meet, DNA replication is complete. Hence, it is true.
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Which of the following tools, produced through the cooperation of many nations, was designed to conduct space research and is
continuously manned by a team of astronauts?
A.
Hubble Telescope
B
International Space Station
C
Spitzer Space Telescope
Chandra X-ray Observatory
D
Answer:
B ISS
Explanation:
The ISS is a cooperation of the worlds largest nations and can have Russian astronauts, Americans and Italians i believe
HELP NEEDED ASAP!!!!!
Answer:
blank #1= cretaceous period of the mesozoic era
blank #2= cambrian period of the paleozoic era
blank #3= We are currently living the Quaternary Period or the Cenozoic era. There was no mass extinction event that ended the Tertiary Period and started the Quaternary Period / Cenozoic era. Instead, the division between the two periods is somewhat ambiguous and often argued by scientists.
I tried my best but I can't figure out the chart part, sorry :/
1.
All living things are composed of cells.
Which action is not accomplished by repeated cell
division?
A.
a plant developing new leaves
B.
a broken bone growing back together
C.
a plant using sunlight to make its own foods
food
D.
an eight-pound baby growing into a 100-pound
teenager

Answer:
C
Explanation:
Everything else has to do with growth but C is talking about food/energy.
A plant using sunlight to make its own foods is accomplished by repeated cell division.
What do you mean by cell division?Cell division is the process by which a parent cell divides into two daughter cells. Cell division usually occurs as part of a larger cell cycle in which the cell grows and replicates its chromosome before dividing.
There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life.
In eukaryotic cells, or cells with a nucleus, the stages of the cell cycle are divided into two major phases: interphase and the mitotic (M) phase.
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Jaguar vs Sea-Going Crocodile who do you think will win?
I think that the crocodile will win in both land and water because its way to aggressive and fierce than the jaguar. One bite from the croc will shatter the jaguars bones, and it has tough armor. The jaguar is also at a size disadvantage and is outclassed in terms of weaponry. So who do you think will win?
Answer:
THE CROC 2020!!!!!!
Explanation:
Answer:
crocodile will win
Explanation:
hope helps you
What initially causes a nerve impulse? release of enzymes out of the neuron movement of chemicals into the dendrites of the neuron pathogens attacking the dendrites of the neuron red blood cells bathing the neuron
Answer:
movement of chemicals into the dendrites of the neuron
Explanation:
Nerve impulse occurs when electrical gradient is moved across the plasma membrane of a resting neuron this is done when the neuron receives a chemical signal from another cell or some other type of stimulus. This action potential then travels down the neuron’s axon as an electric current.
Resting potential occurs because of the difference in electrical charge across the plasma membrane of a neuron.
An electrical gradient is maintained by the sodium-potassium pump this is done across the plasma membrane of a neuron when it is not transmitting a nerve impulse this is the resting potential of the neuron.
Answer:
its B on Edge :))
Explanation:
taking test rn
A ________ is a fundamental category of classification, ranking below genus.
The species is the fundamental category of taxonomic classification, ranking below a genus or subgenus.
What is menstruation
Answer:
a period
bleeding from the woman's parts
Explanation:
How does a Soccer Ball use Inertia
What is Grow food??????? and wat is the answer :)
FIRST GETS BRAINLIEST so hurry
Answer:
Your answser should be C
Explanation:
Answer:
c
Explanation:
What would cause a change in the phenotype of an offspring?
Answer:
In most sexually reproducing organisms, each individual has two alleles for each gene (one from each parent). This pair of alleles is called a genotype and determines the organism's appearance, or phenotype.
Explanation:
Need HELP
Of the items listed, what is something that could be used to help tell the history of an area?
rock layers
animal habitats
human settlements
plant life
Answer:
rock layers becuase fossils and other ancient things could be in there
NEED THIS ASAP, ITS A FINAL!!! WILL MARK BRAINLIEST IF CORRECT.
The following chart shows the amount of four different minerals found in lake water and in the cytoplasm of algae:
Which mineral(s) did the algae uptake through active transport?
Calcium and sodium
Nitrogen and potassium
Nitrogen only
Potassium and sodium
Answer:
Calcium and sodium
Explanation:
Answer: Calcium and sodium
Explanation:Here is the chart
HELPPPPPPP
Which of the following is effective in reducing the number of viral infections?
1. antibodies
2. vaccines
3. innoculation
4. none of the above
Answer:
Explanation:
Vaccines