Wheat kernel color is an additive trait controlled by two genes, gene A and gene B. The A1 and B1 alleles add 1 unit of color to the kernels. The A2 and B2 alleles add 0 units of color to the kernels.   Question 1: If you crossed a dihybrid (A1A2 B1B2) individual to a A2A2 B2B2 individual, which of the following phenotypes are possible? a. 0 units (white) b. 1 unit (light pink) c. 2 units (dark pink) d. 3 units (light red) e. 4 units (dark red)   Question 2: If you crossed a dihybrid (A1A2 B1B2) individual to a A2A2 B2B2 individual, what is your expected phenotypic ratio? a. 1:2:1 b. 1:1:1:1 c. 9:3:3:1 d. 3:1

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Q: dihybrid cross

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Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.