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In sexual reproduction, each parent contributes a sex cell with half as many chromosomes as the normal cells. The two sex cells combine and the zygote will have the proper total of chromosomes. In this way, the offspring inherit genetic information from both parents.

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10y ago
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9y ago

Because the reproductive process involve two of them (one form the female and one form the male) meeting and joining together to form a new primary body cell.

If they did not have half the number of chromosomes, when this happened the new cell would have twice the number it should have.

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Q: Why must sex cells have half the number of chromosomes as boby cells?
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Related questions

Do Body cells only have half the total number of chromosomes?

All body cells contain a total number of 46 chromosomes except sex cells (the egg and the sperm) which have half the number of chromosomes (23) no.... body cells or somatic cells have 46 chromosomes which is the diploid chromosome number of homo sapiens... gametes or sex cells have 23 chromosomes which is the haploid chromosome number...


How does the number in chromosomes in sex cells compare to the number of chromosomes in cells formed during mitosis?

it compares by 50% or by half of chromosomes because there are 23 sex cells and 46 chromosomes


How does the number of chromosomes in sex cells compare to the number of chromosomes in cells formed during mitosis?

it compares by 50% or by half of chromosomes because there are 23 sex cells and 46 chromosomes


If the number of chromosomes in the skin cells of an organism is 28 what is the number of chromosomes in the organisms egg cells?

Gametes have half the number of chromosomes that most cells in the organism have. Most human cells have 46 chromosomes, but eggs and sperm have 23 chromosomes each.


How do the number of chromosomes in a female scorpion's egg cells compare with the number in her body (somatic) cells?

There are 46 chromosomes in your body cells. The egg cells have half the amount of chromosomes as the body cells, so there are 23 chromosomes in the egg cells.


What cell types contains the least number of chromosomes?

Sex cells contain half the number of chromosomes that body cells contain.


Is the number of gametes twice the number of chromosomes found in the body cells?

Yes, the number of gametes is half the number of chromosomes found in body cells. Body cells are diploid, meaning they have a full set of chromosomes, while gametes are haploid, having only half the number of chromosomes as body cells. This halving of chromosome number occurs during meiosis, the cell division process that produces gametes.


How does the number of chromosome in sex cells compare to the number of chromosomes in cells formed during mitosis?

it compares by 50% or by half of chromosomes because there are 23 sex cells and 46 chromosomes


Why do reproductive cells need to have half the normal number of chromosomes?

Humans and other organisms that reproduce sexually need to have half the normal number of chromosomes to make sure their offspring have the same number of chromosomes as they do - the father and mother each contribute half of their chromosomes (sperm and egg).


How does the number of chromosomes in sex cell compare to the number of chromosomes in cells formed during mitosis?

it compares by 50% or by half of chromosomes because there are 23 sex cells and 46 chromosomes


How many chromosomes are in their sex cells?

Sex cells have half the number of chromosomes as the original cell, and are said to be haploid. In human sex cells there are 23 chromosomes.


What kind of cell has half the number of chromosomes as body cells?

Sex cells