Answer:
I think it might be A. I'm not sure.
Their valency is one and both belong to the third period
How old is Darren? we need to know his age before we answer
Answer:
A tiger cub begins to grow
Explanation:
because that's when they change the most
Answer:
BbxBb.
Explanation:
If Bb gene is crossed with Bb, the offspring is produced with normal hearing because both the genes are recessive in which the deafness gene hide and the hearing gene is dominant so the offspring can hear sounds clearly. The dominant A gene is responsible for deafness and we can see the offspring BbxBb in which no dominant gene is present. The other three offspring are deaf because of the presence of dominant A gene in their genetic makeup.