Question

79. Mendel first crossed pure-bred pea plants having round-yellow seeds with pure-bred pea plants having
wrinkled-green seeds and found that only round-yellow seeds were produced in the F1 generation. When
generation pea plants having round-yellow seeds were cross-bred by self pollination, then peas having round-
yellow seeds, round green seeds, wrinkled-yellow seeds and wrinkled-green seeds were produced. Mendel
collected a total of 2160 seeds.
(@) What will be the number of (1) round green seeds (il) wrinkled green seeds (111) round yellow seeds,
and (10) wrinkled-yellow seeds ?
(b) Which 'ratio' as established by Mendel have you made use of in answering the part (a) above ?
so Puro brodround vollonna sonds have enotne RRYY and the nuro brod Trilled​

Answer 1

Answer:

2:9 ratio

Explanation:

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Answer 2

• Phenotype for F2 generation

RY : RG : WY : WG = 9 : 3 : 3 : 1

R = Round shape

W = Wrinkle shape

Y = Yellow colour

G = Green colour

• Genotype for F2vgeneration

1) For RY

=> RRYY:RRYy:RrYY:RrYy = 1:2:2:4

2) For RG

=> RRyy:Rryy = 1:2

3) For WY

=> rrYY:rrYy = 1:2

4) For WG

=> rryy = 1

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