Which of the following represents a cross to determine if an individual is homozygous dominant or heterozygous?
A) Aa x aa
B) AA x AA
C) aa x aa
D) Aa x AA
E) Aa x Aa

Question

Quizplus · Accepted Answer

Crossing a homozygous recessive individual with a homozygous dominant individual will only produce offspring with the dominant phenotype. If a heterozygous individual is crossed with a homozygous recessive individual, some of offspring will display the recessive phenotype. Therefore, this type of cross will allow one to determine if an individual expressing the dominant phenotype is heterozygous or homozygous dominant.

Which of the Following Represents a Cross to Determine If