A testcross consists of A) a cross of two pure-breeding forms to find out which form of a gene is dominant. B) a cross between two unknown forms to determine their genotypes. C) a cross between an offspring and its parent. D) a cross of an F ₁ hybrid to an individual that is homozygous recessive. E) a cross of two F ₂ individuals to produce an F ₃ generation.

Question

Quizplus · Accepted Answer

A testcross involves crossing an individual with a dominant phenotype (but unknown genotype) with an individual that is homozygous recessive to determine the genotype of the dominant individual.

A Testcross Consists of