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Chromosome numbers in gametes are always half that of normal cell. For example human cells have 46 chromosomes but a human gamete (sex cell e.g sperm/eggs) will have half that number which in this case will be 23. The number is chromosomes is halfed in gametes so that when the sperm meets the egg and the fuse to make a zygote that you get half the genetic material from your Mother and half from you Father, meaning you are not a clone.

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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.


What effect does nondisjunction have on the chromosome number of the gametes?

It gives one of the gametes an extra chromosome and leaves the other gamete with one less chromosome.


Name the 2 human gametes and tell their chromosome number?

The human gametes are Male gametes are sperm and female gametes are eggs. And the gametes chromosome numbers are 42.


What To maintain the chromosome number of an organism the gametes must?

Be produced by meosis.


What best describes the function of meiosis?

reduces chromosome number by half, produces gametes


Does sperm contain x and y chromosome?

In humans the male sperm contains EITHER an X chromosome, or a Y chromosome since human gametes are haploid (n) in chromosome number.


What does a gamete have?

Gametes normally contain only one set of chromosome – this number is called Haploid.


How does the number of chromosome in a persons gametes compare with the numbers of chromosomes in the body cells?

There are half as many chromosomes in gametes than in normal body cells.


How mice gametes contain 20 chromosomes. How many chromosome do normal mice zygotes contain?

Since the gametes contain one half the number, the zygote will have to have the full number of 40.


What chromosome is the sex determining chromosome?

That would be the chromosome number 23. Regarding the [sex] chromosome number 23, the female gametes always have a [haploid] X chromatid, whereas the male gametes are just as likely to possess a [haploid] X chromatid as they are to possess a [haploid] Y chromatid.


How many chromosome' s do people have in their gametes?

People have 23 chromosomes in their gametes – 22 autosomes and one sex chromosome. This is the result of a process called meiosis, which halves the number of chromosomes in a cell to produce gametes with half the genetic material.


Why is it necessary to have two separate divisions in meiosis?

Having two separate divisions in meiosis is necessary to reduce the chromosome number by half, ensuring that the resulting gametes have the correct number of chromosomes. This reduction is essential for sexual reproduction, as the fusion of two gametes during fertilization will restore the full chromosome number in the offspring.