Helena received a pea plant from her neighbor, and she wants to know its genotype. The neighbor told Helena that the plant produces round peas, which is a dominant trait (R) to wrinkled peas (r). Helena performs a test cross (mates with homozygous recessive) and observes that half of the offspring plants produce wrinkled peas. What is the genotype of the plant Helena received from her neighbor?

The genotype of the pea plant is( Rr)

Explanation:

Since a test cross was done with homozygous pea plant which were wrinkled, and half were wrinkled,it shows that the pea plant under investigation carries two alleles,one for round plant and the other one for wrinkled pea plant.

c

explanation:

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.