Answer:
According to the third law of Mendel, in dihybrid crosses the inheritance of both characters is carried out independently of each other, and in the offspring of digeterozygotes phenotypic splitting is observed in the proportion of 9: 3: 3: 1 (9 A * B *, 3 aaB *, 3 A * bb, 1 aabb, where * in this case means that the gene can be either in a dominant or in a recessive state).
Answer on the first and second question:
9 (Brown eyes, polydactyly) : 3 (Brown eyes, normal hand) : 3 (Blue eyes, polydactyly) : 1 (Blue eyes, normal hand)
Відповідь:
4) свет, кислород
Пояснення: