Question

WHOEVER RESPONDS FIRST WILL BE MARKED BEST.

A student grew flowering plants next to one another in the school greenhouse. Some of the plants had yellow flowers, while some had white flowers. When these plants produced seeds, the student planted them. All the new plants that sprouted from the seeds had yellow flowers.
Which of the following best explains why the new plants only had yellow flowers?


A. None of the seeds from the white plants sprouted.
B. The new plants inherited dominant genes for yellow flower color.
C. The soil the plants were in caused the flowers to turn yellow.
D. The new plants received more sunlight than the parent plants.

Answer 1

B. is the answer.

Yellow(Yy) is a dominant allele, and although white(ww) is inherited from the parent gene, Yy, white is a recessive gene. That means it is most unlikely to be visible through phenotype(term for visible characteristics).