Question

A new species of plant is discovered in the jungle. Some plants have red berries, but others have purple berries. The two types of plants are crossed. It is noted that all the berries from the plants in the F1 generation are purple, but some of the F2 generation plants have red berries. What is the best explanation for these observations? Purple is the recessive trait.

CHOICES:
a) purple is recessive trait
b) there is evidence of codominance
c) purple is the dominant trait
d) there is evidence of incomplete dominance

Answer 1

c is the correct answer

Answer 2

c) purple is the dominant trait

Step-by-step explanation:

The F1 generation has dominant characteristics because it is the result of the crossing of two homozygous plants (one dominant - AA- and the other recessive- aa). As a result, the F1 generation is heterozygous (Aa) and expresses the dominate characteristic (purple color), however the crossing of F1 generation plants will form both dominant and recessive offspring.