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If a cell that undergoes meiosis later is four cells with chromosome numbers 17 17 18 and 16 what happened?
one of the sister chromatids in one of the two cells that was produced during the first division of meiosis did not separate during the second division resulting in one cell with an extra chromosome and one with a missing chromosome. This process is known as nondisjunction
But the end of prophase each of the following has occurred except?
lining up of chromosomes in the cell
What kind of mutation occurred to produce a person with the genotype XXY?
The genotype XXY is associated with Klinefelter syndrome, which arises from a nondisjunction event during meiosis. This mutation results in the failure of homologous chromosomes or sister chromatids to separate properly, leading to an extra X chromosome in males. Consequently, individuals with XXY typically exhibit male characteristics but may experience various physical and developmental differences.
What would happen if cytokinesis occurred without mitosis explain?
The chromosomes would not have replicated, so the resulting daughter cells will not have the correct ploidy.
What would happen to the number of chromosomes in a cell if mitosis occurred but cytokinesis did not take place?
The number of chromosomes in the cell would remain the same. Mitosis involves the division of the nucleus to ensure that each daughter cell receives a full set of chromosomes. Cytokinesis, the division of the cytoplasm, is responsible for separating the two daughter cells. If cytokinesis does not occur, the cell would end up with two nuclei but still have the same number of chromosomes.
How many chromosomes in an infant?
46 unless a mutation has occurred
If a cell that undergoes meiosis later is four cells with chromosome numbers 17 17 18 and 16 what happened?
one of the sister chromatids in one of the two cells that was produced during the first division of meiosis did not separate during the second division resulting in one cell with an extra chromosome and one with a missing chromosome. This process is known as nondisjunction
But the end of prophase each of the following has occurred except?
lining up of chromosomes in the cell
What kind of mutation occurred to produce a person with the genotype XXY?
The genotype XXY is associated with Klinefelter syndrome, which arises from a nondisjunction event during meiosis. This mutation results in the failure of homologous chromosomes or sister chromatids to separate properly, leading to an extra X chromosome in males. Consequently, individuals with XXY typically exhibit male characteristics but may experience various physical and developmental differences.
What would happen if cytokinesis occurred without mitosis explain?
The chromosomes would not have replicated, so the resulting daughter cells will not have the correct ploidy.
What would happen to the number of chromosomes in a cell if mitosis occurred but cytokinesis did not take place?
The number of chromosomes in the cell would remain the same. Mitosis involves the division of the nucleus to ensure that each daughter cell receives a full set of chromosomes. Cytokinesis, the division of the cytoplasm, is responsible for separating the two daughter cells. If cytokinesis does not occur, the cell would end up with two nuclei but still have the same number of chromosomes.
What is the anterograde amnesia of Korsakoff's syndrome?
an individual may remember what occurred 20 years previously, but is unable to remember what occurred 20 minutes ago. This memory defect is referred to as anterograde amnesia
How many chromosomes does a kidney cell have?
There are 46 chromosomes in kidney cells, big toe cells, and tip-of-the-nose cells.This is because humans are diploid organisms (having two sets of chromosomes in all cells except gametes(23 chromosomes) and mature red blood cells, which extruded their nuclei when they were developing), and 46 is the human diploid number.
What would happen if mistakes occurred in the replication or separatiion of chromosomes?
Mistakes in replication or separation of chromosomes can lead to genetic mutations. These mutations can result in various consequences, such as genetic disorders, cancer, or cell death. The severity of the consequences depends on the nature and location of the mutation within the genome.
What happens at the conclusion of meiosis 1?
At the conclusion of meiosis I, the cell undergoes cytokinesis, resulting in two daughter cells with half the number of chromosomes as the parent cell. Each daughter cell has a unique combination of genetic material due to crossing over that occurred during prophase I.
How did sutton's two graduate school papers help to expand our understanding of genetics?
Sutton's two graduate school papers provided evidence for the chromosomal theory of inheritance by demonstrating the connection between Mendelian inheritance and the behavior of chromosomes during cell division. This helped establish that genes are located on chromosomes and supported the idea that chromosomes are the physical basis for heredity, which was a major step in our understanding of genetics.
How many chormosomes does a body cell for an organism have?
That is different depending on which organism you are talking about.For example humans have 23 pairs of chromosomes (46 total chromosomes) in every body cell; however all other primates have 24 pairs of chromosomes (48 total chromosomes) in every body cell. This difference is because an accidental joining of 2 chromosomes occurred in our direct primate ancestor, producing what is now called human chromosome #1 (our largest chromosome). This joining was likely the speciation event that created humans, as while individuals of the 2 groups still looked identical and living together as if still 1 group was possible for many generations successful breeding between an individual with 23 pairs and another with 24 pairs would be unlikely, eventually the 2 groups either separated or our direct primate ancestor went extinct leaving just the early humans.The largest number known is in a fern called adders-tongue which has 630 pairs of chromosomes (1260 total chromosomes) in every body cell. There is a species of butterfly which has 134 pairs of chromosomes (268 total chromosomes) in every body cell, one of the highest known in an animal.The fewest known is in the jack jumper ant: females have 1 pair of chromosomes (2 total chromosomes) in every body cell, however males don't even have a pair all they have is 1 single chromosome (this is the smallest possible)!
