Germ cell: The eggs and sperm are the germ cells: the reproductive cells. Each mature germ cell is haploid in that it has a single set of 23 chromosomes containing half the usual amount of DNA and half the usual number of genes.
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 germs cells -- the eggs and sperm -- are thus notable exceptions to the usual rules governing chromosomes, genes, and DNA.
Germ cell: The eggs and sperm are the germ cells: the reproductive cells. Each mature germ cell is haploid in that it has a single set of 23 chromosomes containing half ...
Reconstitution of the Mouse Germ Cell Specification Pathway in Culture by Pluripotent Stem Cells
Brief and Straightforward Guide: What are Germ Cells?
Ovarian germ cell tumor is a general name that is used to describe several different types of cancer. The most common ovarian germ cell tumor is called dysgerminoma.
Key Terms: Choriocarcinoma, Embryonic carcinoma, Endodermal sinus tumor, Germinoma, Gonadoblastoma. Definition Germ cell tumors are tumors that begin in cells that ...