Answer:
In pea plants, the allele for purple flower color is dominant to the allele for white flower color. If you were to perform a test cross to determine the genotype of a purple-flowered plant, what would you expect the phenotypic ratio of purple-flowered to white-flowered progeny to be if the plant is homozygous? And what would you expect if the plant is heterozygous
D. If the purple-flowered plant is homozygous, than the progeny would all have purple flowers; if the purple-flowered plant is heterozygous, then the progeny would have purple to white flowers in a 3:1 ratio.
for homozygous plant, the genotype progeny would be Pp, Pp, Pp, Pp
ratio of purple-flowered plant would be 4:0 all purple
for heterozygous plant, the genotype would be PP, Pp, Pp, pp
ratio of purple-flowered would be 3:1
Explanation:
From the above experiment
let purple flower be represented with P
Let white flower be represented with p
then;
for homozygous plant, the genotype progeny would be Pp, Pp, Pp, Pp
ratio of purple-flowered plant would be 4:0 all purple
for heterozygous plant, the genotype would be PP, Pp, Pp, pp
ratio of purple-flowered would be 3:1
