Question

Organisms can have both dominant and recessive genes. An organism must have one copy of a dominant gene for that certain dominant trait to appear. However, recessive genes require two two copies of the gene for it to appear.

In a flower population, purple flowers are a dominant trait and white flowers are a recessive trait.
Which statement is MOST likely correct about the offspring from this flower population?
A) Offspring that receive a dominant gene from each parent will have white flowers.
B) Offspring that receive a recessive gene from each parent will have purple flowers.
C) Offspring that receive a recessive gene from one parent and a dominant gene from another parent will have white flowers.
D) Offspring that receive a recessive gene from one parent and a dominant gene from another parent will have purple flowers.

Answer 1

D is the correct answer!

Only one dominant gene is needed for that trait to show, in this case, purple flowers rather than white. As there is ONE present dominant gene, the purples will in fact turn out purple.