Question

choose the words that complete the sentences correctly.
a choose shows family relationships and the presence or absence of a trait in each member. it can be useful for identifying a trait caused by a(n) choose gene, such as colorblindness, because they are more common in one gender than the other.

Explanation:

The first blank should be "pedigree" as a pedigree shows family relationships and trait presence/absence. The second blank should be "sex - linked" since traits like colorblindness are sex - linked (more common in one gender) and caused by sex - linked genes.

Answer:

First blank: pedigree; Second blank: sex - linked