Question

In a monohybrid cross male plants having red coloured flowers were crossed with the female
plants with white coloured flowers. It was seen that in the first generation (F1) all the offspring
bore red coloured flowers. However, when 56 such plants were self-crossed, it was observed in the
second generation(F2) that 39 plants bore red flowers and only 13 had white flowers.

(i) What are the genotypes of F1 and F2 progeny?
(ii) What inference would be drawn from the above data?
(iii) What would be the genotypic ratio of the progeny if the F1 males were crossed with parent
females?

Answer 1

Answer:

In a monohybrid cross male plants having red coloured flowers were crossed with the female

plants with white coloured flowers. It was seen that in the first generation (F1) all the offspring

bore red coloured flowers. However, when 56 such plants were self-crossed, it was observed in the

second generation(F2) that 39 plants bore red flowers and only 13 had white flowers.

(i) What are the genotypes of F1 and F2 progeny?

(ii) What inference would be drawn from the above data?

(iii) What would be the genotypic ratio of the progeny if the F1 males were crossed with parent

females?

Answer 2

Answer:

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