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Cells, reproductive: The eggs and sperm are the reproductive cells. Each mature reproductive cell is haploid in that it has a single set of 23 chromosomes containing half the usual amount of DNA.
Except for the eggs and sperm, each cell in the human body -- there are 100 trillion cells in each of us -- contains the entire human genome, all the genetic information necessary to build a human being, and this information is encoded within the cell nucleus in 6 billion base pairs, subunits of DNA, packaged in 23 pairs of chromosomes, one chromosome in each pair coming from each parent.
The reproductive cells -- the eggs and sperm -- are thus notable exceptions to the usual rules concerning chromosomes, genes, and DNA.
Cell Reproduction. Most human cells are frequently reproduced and replaced during the life of an individual. However, the process varies with the kind of cell.
reproductive cell (r pr-d k t v) See gamete. Thesaurus Legend: Synonyms Related Words Antonyms. Noun: 1. reproductive cell - a spermatozoon or an ovum; a cell ...
Reproductive cells: The eggs and sperm are the reproductive cells. Each mature reproductive cell is haploid in that it has a single set of 23 chromosomes containing ...
reproduction (biology), Cell reproduction, Britannica Online Encyclopedia, The chemical constituents of cytoplasm (that part of the cell outside the nucleus) are not ...
I. Cell Division . Life is based on the ability of cells to reproduce, or make copies of themselves. This is done by a process called cell division = one cell divides ...