Dihybrid Crosses

Question 1

Dihybrid

Answer 1

a genotype that is heterozygous for two traits, for example, AaBb; sometimes used in a general way to refer to genetics problems using two traits

Question 2

Trihybrid

Answer 2

a genotype that is heterozygous for three traits, for example AaBbCc, sometimes used in a general way to refer to genetics problems using three traits

Question 3

Low of independent assortment

Answer 3

during meiosis, any allele from one trait can end up in the same gamete as any allele from another trait; e.g. an individual with the DdGg genotype can produce DG, Dg, dG or dg gametes; only applies to genes that are not linked on the same chromosome

Question 4

Phenotypic ratio

Answer 4

a proportion expressing all the possible visible physical traits in a generation