Answer: 25%
Explanation: if you do the Punnett Square method then you would see that both parents would have been Dominant for the trait, so there is a 50% chance of the offspring to be a carrier, 25% chance of the offspring to have PKU and 25% chance for it to ave
It is called Commensalism.
The shark is neither harmed or benefited but the remoras get the benefit of this relationship without harming the shark.
There are 35 pairs
but 70 all together
I believe the answer to your question is c
