Definition of Cells, reproductive
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 DNA amount.
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.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 9/20/2012
Medical Dictionary Definitions A - Z
Search Medical Dictionary
Find out what women really need.
Women's Health Resources
- 7 Tips for Hiding Dandruff
- Top Diet, Fitness and Beauty Tips
- 7 Things You Should Know About Your Vagina
Health Solutions From Our Sponsors
Most Popular Topics
Pill Identifier on RxList
- quick, easy,
Find a Local Pharmacy
- including 24 hour, pharmacies