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In starfish, the allele for brown coloring is dominant, and the allele for blue coloring is

recessive. For which parental genotypes are 100% of the offspring expected to be blue?
BB x bb
Bb x Bb
bb x bb
BB x BB

1 Answer

5 votes

Answer:

C. bb x bb

Step-by-step explanation:

B B B b

b Bb Bb B BB Bb

b Bb Bb b BB bb

100% Brown 75% Brown 25% Blue

B B b b

B BB BB b bb bb

B BB BB b bb bb

100% Brown 100% Blue

User Anthony Granger
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