Question

mendelian inheritance: from genes to traits english lets find out how much you know about this topic! this will help us personalize your learning experience, and dont worry, it wont affect your grades. question 5 of 8 what phenotype would result from a cross between two heterozygous parents (bb) for a dominant trait b? all offspring will exhibit the recessive trait. 50% of offspring will exhibit the dominant trait, and 50% the recessive trait. 75% of offspring will exhibit the dominant trait, and 25% the recessive trait. all offspring will exhibit the dominant trait.

Explanation:

When two heterozygous parents (Bb) are crossed, the Punnett - square analysis shows the genotypes BB:Bb:bb in a ratio of 1:2:1. Since the dominant trait is expressed in both BB and Bb genotypes, the phenotypic ratio of dominant to recessive traits is 3:1. So, 75% of offspring will have the dominant trait and 25% will have the recessive trait.

Answer:

C. 75% of offspring will exhibit the dominant trait, and 25% the recessive trait.