In beta fish, a blue tail (B) is dominant over a black tail (b) and a metallic sheen (M) is dominant

Biology

1 answer:

Tju [1.3M]2 years ago

7 0

Answer:

D) 8 blue tail nonmetallic: 8 black tail nonmetallic

Explanation:

The first thing to realize about the problem is that all offspring will be nonmetallic. Both parents are pure recessive for nonmetallic tails; therefore, their offspring cannot have metallic tails. So to find the ratio, use a simple punnet square with Bb and bb. This results in a 50% chance of Bb (blue) and 50% bb (black). So the last answer is correct.

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