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:

1. Green

2. 25%

3. 1:2

4. Law Of Dominance

Answer 2

Answer:

i) Green coloured stem

ii) 25%

iii) 1:2

(Pure green : (Hybrid green

Stemmed) Stemmed)

iv) Mendel's law of segregation or

Mendel's First Law which states, “two alleles of a gene controlling each character stay together in the individual, but during gamete or spore formation by meiosis, the alleles of pair segregate or separate from each other so that a gamete or spore carries only one allele of a character.”

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