5
the chromosome and the
21
The haploid chromosome number is half the chromosome number of the body cells. For example, in humans, body cells have 46 chromosomes. In human haploid cells (sex cells), there are 23 chromosomes.
There are half as many chromosomes in gametes than in normal body cells.
The chromosome number 23 is found in human sex cells, such as eggs (in females) and sperm (in males). These cells are known as haploid cells, containing half the normal number of chromosomes found in somatic cells.
The question is somewhat ambiguous as there are literally millions of different species, each with its own cellular chromosome count.In addition, normal Somatic Cells have exactly twice the number of chromosomes that normal Haploid cells have.Below is a list of different species and their corresponding Somatic cell chromosome count.For the Haploid cell chromosome count simply divide the listed Somatic cell number by 2:Somatic Cells - Chromosome CountHuman - 46Common fruit fly - 8Guinea Pig - 64Dove - 78Garden Snail - 54Earthworm - 36Tibetan Fox - 36Domestic Cat - 38Domestic Pig - 38Laboratory Mouse - 40Laboratory Rat - 42Rabbit - 44Syrian Hamster - 44Hare - 48Gorillas / Chimpanzee - 48Domestic sheep - 54Elephants - 56Cow - 60Donkey - 62Horse - 64Dog - 78Kingfisher - 132Goldfish - 100-104Silkworm - 56
If you mean haploid, as in half of each chromosome, or containing only one chromatid from each full chromosome, thenthe cell is called haploid.
There are 23 haploid chromosomes in a normal human gamete (sex cell).
The human sex cell or human gamete has half the number of cells that any other normal human cell would have. A normal human cell (the one from your skin, mouth, lung, liver, sex organs, etc.) has 23 pairs of chromosomes and as such are called diploid cells. The sex cells are haploid having only 23 number of chromosomes as they unite with another haploid cell to create a normal cell with complete set of 23 pairs of chromosomes. The 23rd chromosome on a male human gamete is either the X or the Y chromosome while on the female gamete it is always the X chromosome.
In normal human females, approximately 90-95% of cells have a Barr body. This structure is a condensed, inactive X chromosome that forms during embryonic development in females to help compensate for having two X chromosomes.
46.
The gametes must have half as many chromosomes as normal body cells because they unite to form a zygote, which is the first body cell of the new organism. For example, human body cells have 46 chromosomes and human gametes (sperm and egg cells) have 23 chromosomes. When the sperm fertilizes the egg, the zygote will have 46 chromosomes, and is the first body cell of the new human.