Answer:
Hereditary factors do not combine but are passed on in the same form they were inherited.
Explanation:
3 bases make up the code for amino acids
The right answer is to the question is D.Sr
Fish will eat tadpoles if they can get to them. The only way to stop them would be to give the tadpoles a space that the fish can't get to, like a shallow area with a barrier (plastic mesh would work but make sure the fish can't get caught in it) or lots of plants, or make a separate wildlife pond.
The horse will give 32 chromosomes and donkey will give 31 chromosomes to the offspring.
The offspring has 63 in total.
It is odd so it can not produce normal germ cell. So it is sterile.