X chromosome

X chromosome

(Science: genetics) A sex chromosome. In mammals paired in females (XX), in amphibia paired in males. The sex chromosome that is present in both sexes: singly in males and doubly in females; human females normally have two X chromosomes.One of the sex chromosomes found in both sexes. The X chromosome in males can express many dominant sex-linked traits because the shorter opposing Y-chromosome has no homologous genes to challenge the dominance of some genes on the Y chromosome.

Retrieved from "http://www.biology-online.org/bodict/index.php?title=X_chromosome&oldid=26034"
First | Previous (X-rays) | Next (X chromosomes) | Last
Please contribute to this project, if you have more information about this term feel free to edit this page.