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The chromosome number only doubles when two haploid gametes form to produce a diploid zygote. Example: In humans, sperm cells and eggs have 23 chromosomes, the haploid number. Once they fuse, the number doubles to 46 chromosomes. You may be confusing this with chromosome replication. In chromosome replication, the number of chromosomes does not double, but the number of strands double. (A single stranded chromosome turns into a double stranded chromosome.) However, it is still considered a single chromosome, but with identical sister chromatids. This replication occurs during the S-phase of the cell cycle, before mitosis or meiosis.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoNo, because in each sex cell, all of the chromosomes are split in two. When the sex cells "join", each half of each chromosome joins with its corresponding half from the partner sex cell.
Wiki User
∙ 13y agoIt may appear doubled in a condensed phase. However, if you are talking about the recombination of paternal and maternal DNA during mitosis, then it is during mitosis.
Wiki User
∙ 12y agoIn the cell the chromosomes must double for the number of chromosomes the organism is supposed to have.
Wiki User
∙ 11y ago23
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What is the modal chromosome number?
The modal chromosome number is the most common chromosome number within a population or sample.
What would happen if meiosis did not occur to produce sex cells?
the chromosome number would double in every generation
A somatic cell having two of each type of chromosome has chromosome number?
Diploid
What is the region of a chromosome holding the two double strands of replicated DNA together called?
The region of a chromosome holding the two double strands of replicated DNA together is called a centromere. The complex of DNA and protein that makes up eukaryotic chromosome is properly called chromatin.
When a cell divides by mitosis how is the chromosome number affected?
In the beginning of mitosis the number of chromosomes double. But since during mitosis the chromosomes are divided between the two daughter cells the number of chromosomes at the end is the same number as the beginning before doubling.
What happen if meiosis did not occur to produce sex cells?
the chromosome number would double in every generation
What would happen if sex cells were not haploids?
The chromosome number would double throughout each generation.
What is the modal chromosome number?
The modal chromosome number is the most common chromosome number within a population or sample.
How does the chromosome number in a diploid cell differ from the chromosome number in a haploid cell?
The chromosome number in hapliod cell is 1 while the dipliod chromosome has 2
What would happen if meiosis did not occur to produce sex cells?
the chromosome number would double in every generation
What chromosome number is diabetes type 2?
Chromosome number 20.
How does the significance of meiosis maintained the chromosome number?
No. Meiosis results in halving of chromosome number. Chromosome number after one round of meiosis is half that of original chromosome number. Generally, meiosis takes place during gamete formation. So when two gametes fuse, they lead to restoration of the chromosome number. Hence chromosome number can be maintained in sexually reproducing organisms.
In albinism what chromosome number is affected?
Chromosome 9.
What chromosome number is affected by hypercholesterolemia?
chromosome 19
Why is each chromosome a double?
There are 2 of each chromosome because you get 1 set from each parent.
Which chromosome number is the gene for narcolepsy found on?
The gene associated with narcolepsy is found on chromosome 12 in humans. This gene is called HLA-DQB1*06:02 and is a key genetic factor contributing to susceptibility to narcolepsy.
Does a zygote ha ve a diploid chromosome number?
yes zygote do have diploid chromosome number
