Question

The genotype of green stemmed tomato is denoted as GG and that of purple stemmed tomato plant as gg.When these two are crossed

i) What colour of stem would you expect in their F1 progeny ?
ii) Give the percentage of purple stemmed plants if F1 plants are self pollinated .
iii) In what ratio would you find the genotypes GG and Gg in F2 progeny ?
iv) Which law of Mendels work in this experiment ​

Answer 1

Answer:

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(i) Green

(ii) 25%

(iii) 1:2:1

(iv)The answer is given in below pic...

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Hope my answer helps....

Please mark it as brainliest.....

Answer 2

Explanation:

Crossing:

Parents: GG gg

↓ ↓

Gamete: G g

↓

F₁ generation: Gg (G×g)

↓

F₂ generation: GG ; Gg ; Gg ; gg

(selfing ; Gg×Gg)

i) When green stemmed tomato is crossed with purple stemmed tomato then it gives Green stemmed tomato because G is dominant over g in F₁ generation/progeny.

ii) If F₁ generation are self pollinated (selfing) then, the percentage of Purple stemmed tomato is 25% and Green stemmed tomato is 75%

iii) Ratio of GG:Gg:gg = 1:2:1

iv) Law of segregation