And in humans this is the X or the Y chromosomes. Queen Victoria of England was a carrier of the gene for hemophilia. She passed the harmful allele for this X-linked trait on to one of her four sons and at least two of her five daughters.
Sex Linked Genes.
Men and women can get the X-linked ones since both inherit X chromosomes. These are traits that are found on either one of the chromosomes that determine sex, or the sex chromosomes. Sex linked is a trait in which a gene is located on a sex chromosome.
This explains why women are frequently carriers of X-linked traits but more rarely have them expressed in their own phenotypes.
Города, параллельно которому реальный Диаспар и сохранялся неизменным на протяжении вот уже миллиарда лет. Олвин мог видеть ,только. ту часть города, которая оставалась незыблемой. Люди, ходившие по его улицам, не существовали.
In females, the effect of the mutation may be masked by the second healthy copy of the X chromosome. Subsequently, genes on that chromosome not coding for gender are usually expressed in the male phenotype even if they are recessive since there are no corresponding genes on the Y chromosome in most cases.
Genes that are carried by either sex chromosome are said to be sex linked.