The minimum weight of tomato obtained from a plant is 20g. The maximum weight of tomato obtained is 120g. What will be the weight of tomato obtained by crossing plant with genotype AAbb x aabb. 

Asked by dr_pradip27121972 | 22nd Apr, 2020, 03:04: PM

Expert Answer:

Minimum weight of tomato = 20 g = aabb

Maximum weight of tomato = 120 g = AABB

Parents – AAbb and aabb

Gametes – Ab and ab

Offspring - Aabb

AA = BB = 60, A = 30, B = 30

aa = bb = 10, a = 5, b = 5

Therefore, calculating the contribution for every gene, we get-

Aabb = 30 + 5 + 5 + 5 = 45 g

So, the weight of the progeny tomato = 45 g

Answered by Sheetal Kolte | 23rd Apr, 2020, 12:40: PM

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