Question

A normal pea plant bearing colored flowers suddenly start producing white flowers. what could be the possible cause?

Answer 1

This is due to mutation which is a sudden heritable change. The dominant trait for bearing different colours of flowers is not expressed in this situation. A recessive trait (bearing white flowers ) is expressed where the new generation is having heterozygous recessive allele.

Answer 2

Answer:

When a normal pea plant beaaring coloured flowers suddenly starts producing white flowers, there is a possibility that:

(a) The white flower gene is a recessive gene and needs a homozygous condition to express itself. Thus, when the plant recieved two reccessive alleles, it produced white flowers.

(b) A mutation in the genes of the flower has occured. This can cause the White flower gene to change to dominant and thus express itself after several generations.

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I hope this answer helped you!

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Reference: Sahodya Sample Paper Solutions

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