Question 277095

When a dark blue fish and a light blue fish with dark blue fins were mated , all offspring became dark blue. What could also be seen was that part of the offspring got light gray fins.

Explain with the help of genetics why all fish turn dark blue.

Use relevant terms in your explanation and also show using intersection diagrams.

Now we look at the fins instead. How come some of the offspring get gray fins instead of dark blue like the parents?