A Cross Between Two Individuals Identically Heterozygous for One Gene

Question

A cross between two individuals identically heterozygous for one gene is called ______.  
A) dihybrid cross
B) monohybrid cross
C) testcross
D) Punnett square
E) hybridization

Accepted Answer

A monohybrid cross involves the mating of two individuals that are heterozygous for one gene, which is exactly the case in this scenario. A dihybrid cross would involve two genes, and a testcross would involve mating with a homozygous recessive individual to determine the genotype of an unknown individual. A Punnett square is a tool that is used to predict the outcome of a genetic cross, and hybridization refers to the process of breeding or crossing two different varieties or species.