A cleft chin is a dominant trait. One parent is heterozygous for cleft chin, and the other parent does not have a cleft chin. What is the probability that the offspring will have a cleft chin? 1 out of 4 2 out of 4 3 out of 4 4 out of 4

2 out of 4

Explanation:

Let the allele for cleft chin be represented by A, while the alternate recessive version would be a.

A parent that is heterozygous for cleft chin would have the genotype Aa.

A parent without cleft chin would have the genotype aa.

             Aa    x    aa

          Aa   Aa   aa   aa

Aa - cleft chinned = 2/4

aa - normal chin = 2/4

Thus, two out of every four (2/4) of their offspring would have cleft chin.

explanation:

most inclusive taxonomic category, larger than a kingdom. largest taxonomic group, consisting of closely related phyla. group of closely related species, first part of the scientific name in binomial nomenclature. group of similar organisms that breed and produce fertile offspring.