Question

How many different types of offsprings are formed by the mating between the genotypes AAbbCCDd x AaBbCcdd.

Answer 1

Mating between the genotypes AAbbCCDd x AaBbCcdd produces 16 different types of offsprings.

• Types of gametes formed are determined by 2ⁿ where n stands for degree of heterozygosity.
• In AAbbCCDd, the degree of heterozygosity is 1 (2¹=2), so 2 types of gametes will be formed.
• In AaBbCcdd, the degree of heterozygosity is 3, (2³=8) therefore 8 different types of gametes will be formed.
• Mating between these two genotypes will form 2x 8=16 different types of offsprings.