A mutant phenotype in humans appears more often in males than in females and often skips a generation.From this, you can conclude that the allele responsible is
A) sex-linked.
B) autosomal dominant.
C) autosomal recessive.
D) autosomal codominant.
E) It is impossible to determine from this information.

Question

Quizplus · Accepted Answer

The fact that the phenotype appears more often in males than females and skips a generation suggests that the allele responsible is located on the sex chromosomes, most likely on the X chromosome. This would make it a sex-linked trait. Autosomal dominant and recessive traits do not exhibit a gender bias, and codominance does not necessarily involve gender differences. The information given does not provide enough detail to determine if the trait is dominant or recessive on the X chromosome.

A Mutant Phenotype in Humans Appears More Often in Males