0
If a cell that undergoes meiosis later is four cells with chromosome numbers 17 17 18 and 16 what happened?
Wiki User
∙ 12y ago
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
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Why is meiosis necessary in organism that carry out sexual reproduction?
This is necessary because it keeps the numbers of chromosomes the same through every generation. As you might know 1 extra or 1 missing chromosome is harmful for an individual.
Can Karyotypes help pinpoint cases caused by unusual chromosome numbers?
A karyotype can be valuable in pinpointing cases of unusual chromosome numbers in a cell.
What chromosomes can be affected by changes in chromosome numbers?
Any chromosome can be affected by aneuploidy. However, generally, the larger the chromosome, the larger the likelihood that the change in chromosome number will be fatal.
What is the amount of genes in an animal cell?
Genes and chromosome numbers vary from animal to animal
If a diploid cell containing 28 chromosomes undergoes meiosis how many chromosomes will each daughter have?
In mitosis, the daughter cells each have the same number of chromosomes as the parent cell.
What happens to the chromosome numbers during meiois?
During meiosis, the chromosome number doubles because the cells replicate their DNA and split into two cells in meiosis I and in meiosis II, they replicate DNA and split once again, to form four cells.
Does meiosis reduce chromosome numbers?
Yes - the daughter cells produced in meiosis (gametes) have half the number of chromosomes as those in the original cell. This is why meiosis is referred to as 'reduction division'. However, as meiosis produces cells which are involved in sexual reproduction - the chromosome number in the species remains constant. This is because when the two gametes combine, the resulting organism has the correct number of chromosomes (half from each gamete).
Is a hinny sterile?
Chromosome numbers are different that is why they cannot go under meiosis and can't produce offspring. It is known as interspecific (between two species) hybrid . They are sterile some examples-Mules,Hinny
Why is meiosis necessary in organism that carry out sexual reproduction?
This is necessary because it keeps the numbers of chromosomes the same through every generation. As you might know 1 extra or 1 missing chromosome is harmful for an individual.
Can Karyotypes help pinpoint cases caused by unusual chromosome numbers?
A karyotype can be valuable in pinpointing cases of unusual chromosome numbers in a cell.
What chromosomes can be affected by changes in chromosome numbers?
Any chromosome can be affected by aneuploidy. However, generally, the larger the chromosome, the larger the likelihood that the change in chromosome number will be fatal.
Why is a mule infertile?
A donkey and a mule have different chromosome numbers. When meiosis occurs (the creation of egg and sperm) the chromosome numbers halve and half of the genetic material is given to each of the two new cells created. However in the case of mule, their normal body cells have an uneven chromosome number so this cannot occur, therefore they can't make eggs or sperm
How and why are chromosome numbers reduced during meiosis?
It reduces half the number of chromosomes because its spliting up a cell and that also splits into to parts. The most chromosomes human can have is 46 so ya. UNICORNS R AWESOME AND SO IS JOEY GRACEFFA
How many chromatids are found in each daughter cell?
It depends on the type of cell. In ordinary somatic (body) cells it is the same as the parent cell. In sex cells it is half the number. Many animals and plants have numbers of chromosomes that are different from human cells numbers.
Why is meiosis and fertilization important for survival of many species?
Large numbers of gametes
Do you see a place where problems could arise during Meiosis?
During the anaphase phase of meiosis, there can be non-dysjunction. This is when the spindle fibres do not effectively pull apart the chromosomes, leading to the cells having unequal numbers of chromosomes (ie. 3 and 1 rather than 2 and 2). An example of this is Trisomy 21, which is when there is non-disjunction of the 21st chromosome in either Anaphase I or Anaphase II. This causes Down's syndrome.
What chromosome does Neurofibromatosis effects?
WOW!! That guy is amazing. A chicken? Histerical, Neurofibromatosis affects only chromosome number 23. It also will affect the brain and is an autosomal dominant genetic disorder.It is when your chromosome has a chicken.
