A white pea plant is crossed a heterozygous violet pea plant. What will be characteristic of offspring?

Question

A white pea plant is crossed a heterozygous violet pea plant. What will be characteristic of offspring? (A) 75 % recessive (B) 50 % recessive (C) 25 % recessive (D) All dominant

Tardigrade Admin · Accepted Answer

In a typical test cross, an organism (pea plants here) showing a dominant phenotype (and whose genotype is to be determined) is crossed with the recessive parent instead of self-crossing. The progenies of such a cross can easily be analysed to predict the genotype of the test organism.
Solution

Q. A white pea plant is crossed a heterozygous violet pea plant. What will be characteristic of offspring?

75 % recessive

50 % recessive

25 % recessive

All dominant

In a typical test cross, an organism (pea plants here) showing a dominant phenotype (and whose genotype is to be determined) is crossed with the recessive parent instead of self-crossing. The progenies of such a cross can easily be analysed to predict the genotype of the test organism.