Question

Hi there mate here's a question for u from class 10 sci "Heredity and evolution"
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The genotype green stem tomato plant is denoted as G G and that of purple stem tomato plant is g g when these two are crossed
a) What colour of stem would be expect in F1 progeny?
b) give the percentage of purple stem plant if F1 plant are self pollinated .
c) in what ratio would you find Juno type G G and G g in F2 support your answer with the help of genetic cross.
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Answer 1

a)Colour of the stem would be expected in F1 progeny is Green.
b) If the F1 generation is self pollinated then 25% of of the plant have purple stem.
c)The ratio of GG and gg is 1:2.
HOPE IT HELPS........

Answer 2

The genotype of green stemmed tomato plant is GG and the genotype of purple stemmed tomato plant is gg. A. When we cross them to produce progeny in the F1 generation, we will find that all the plants have green stems ( this shows us that green coloured stem is dominant) .