In the offspring from crossing two fruit flies with normal wings, some flies with underdeveloped wings
| May 2, 2021 | education
In the offspring from crossing two fruit flies with normal wings, some flies with underdeveloped wings were obtained. One of these flies is backcrossed with one of the parents. Crossing yielded 37 flies with normal wings and 42 flies with underdeveloped wings. Determine which trait is dominant.
Р1: women. Aa * husband. Aa
gametes: A a; A a
F1: AA (normal); Aa (normal); Aa (normal); aa (underdeveloped)
P2: female Aa * husband. aa
gametes: A a; а
F2: Aa (normal); aa (underdeveloped) 1: 1
Based on the study, the dominant feature (A) is the normal development of the wings, recessive (a) – the underdeveloped wings.
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