whay are males more likely than females to express a sex link trait?

Question

answers please thankyou

Answer 1

If the gene is linked to the X chromosome, the male has only one copy, while the female has two copies. If the trait is recessive, the female is only a carrier if she is heterozygous, while the male expresses the trait.

If the gene is linked to the Y chromosome, only the male gets it.

Answer 2

Females contain two X Chromosomes (XX), Males one X and one Y (XY). Sex linked traits are found on either the X or Y chromosome. Since females have two X chromosomes, any sex linked trait would most often need to be present on both to be expressed. Many sex linked traits are recessive, thus any dominant trait of the same type would prevent expression. Since males have only one of each sex chromosome, dominance of a recessive sex linked trait is less likely. Most linked traits are either linked to the X or the Y, not usually either. An X linked trait would be far more likely to be expressed in a male who doesn't have another X chromosome to carry a dominant trait. Also, since males have both types of chromosomes (X and Y), they have the potential to express Y linked traits that females will not.

Answer 3

Sex-linked traits occur on the gender-determining X or Y chromosome.

In men, the Y pairs with an X, but only covers about half of it. So men have two copies of genes that occur on both the Y and X, but only one copy the part on the X that has no matching part on the Y.

Having only one copy of a gene makes recessive traits just as likely to appear as dominant ones. In females, those recessives might be obscured by their second copy of the gene. Males have nothing to hide them.

There are also, of course, some very few genes that occur only on the Y chromosome. Actually, most of the Y chromosome is junk. There are only 86 working genes on it of the 25,000 that humans may possess overall. Still... most of the ones on the Y are ones completely inaccessible to women and specific to men only. In a way, men have more genes than women, even though women have more DNA than men. Funny.

Answer 4

C. adult males in undemanding terms have one X chromosome so whether the gene is recessive it nonetheless shown. So if a guy has XhY then the h might nonetheless result him. there is likewise no such element as a male service simply by fact they the two have the affliction or no longer. a woman has to have 2 like so, XhXh. in the event that they have one H and one h then they may well be agencies (can unfold the affliction yet no longer effected by making use of it). Or XHXH while the female would not have the affliction in any respect.

Answer 5

because if one X chromosome in the female is deformed or something, they have another X to cover up for it, unlike males