Question

If dominant violet flowered plant crossed with white flower plant and progeny all violet .genotype of flowerd plant ??​

Answer 1

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Test cross is the cross which is done to find out the genotype of parents. Suppose the genotype of a pea plant parent with violet flowers is CC and that of homozygous recessive parent is cc. If the F

1

hybrid had yielded 50% violet flowers and 50% white flowers it is a clear case of heterozygous parents which means that the genotypes of parents are Cc and cc.

Genotype Cc (Violet flowers) X cc (white flowers)

Gametes C and c c and c

Punnette square

Gametes C c

c Cc cc

c Cc cc

Thus, 50% offsprings are with violet flowers and 50% with white flowers.