55. In cocker spaniels, black coat color (B) is dominant over red (b), and solid color (S) is dominant over spotted (s). If Bb Ss were crossed with Bb ss, the chance that a black solid individual would be produced is a. 3/16. b. 1/3. c. 9/16. d. 3/8. e. 1/16.

d. 3/8

Explanation:

Black coat color (B) is dominant over red coat color (b) and solid color (S) is dominant over spotted color (b).

BbSs was crossed with Bbss

BbSs   x   Bbss

Offspring:

2 BBSs black, solid

2 BBss black, spotted

4 BbSs black solid

4 Bbss black, spotted

2 bbSs red, solid

2 bbss red spotted

Total black solid = 6

Hence, the chance that black solid individual would be produced = 6/16 = 3/8.

The correct option is d.

See the attached for the Punnet's square analysis.

option a and d is the correct answer

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