Question

If 2 heterozygous pea plants with yellow round seeds are crossed, what is the ratio of the yellow round seed?

Answer 1

Answer:

If two heterozygous pea plants are crossed with yellow round seeds, the resulting progeny mostly show the dominant phenotype.

Explanation:

Plants with two different alleles of a gene are heterozygous. As all the heterozygous offspring are yellow, then the yellow allele must be dominant over the recessive green allele.

       Y              y

Y     YY          Yy

y      Yy           yy