Question

17 multiple choice 1 point sb2b. males are more likely to be affected by sex - linked diseases and disorders. why? males only have 1 x - chromosome, so the disorder will be expressed if it is present. males get 2 x - chromosomes from their mother so they are more likely to get an x - linked trait. girls rule and boys drool. males have less dna so the the disease will affect them more often.

Explanation:

Sex - linked genes are on the sex chromosomes. Males have one X and one Y chromosome (XY). If a recessive allele for a sex - linked disorder is on the X chromosome, since males have only one X chromosome, they will express the disorder if they inherit that allele. Females have two X chromosomes (XX), so they need to inherit two copies of the recessive allele to express the disorder.

Answer:

Males only have 1 X - chromosome, so the disorder will be expressed if it is present.