anaguzman
Answered

Brown fur (B) is dominant to pink fur (b).  If dad's genotype is BB and mom's genotype is bb, what are the odds that the baby will have pink fur?

Select one:
a. 50%
b. 0%
c. 25% 
d. 100%

Pointy ears (P) are dominant to floppy ears(p).  If mom and dad have the genotype Pp, what are the odds that the baby will have floppy ears?

Select one:
a. 75%
b. 0%
c. 25%
d. 50% 

Verified Answer :

Answer to the first one is B. Second one is C

There is a 0% chance that the baby will have pink hair.

BB (father) x bb (mother)

Punnett Square:

         b        b                               Genotype Ratio: 100% Bb

B    Bb     Bb                               Phenotype Ratio: 100% brown hair

B    Bb     Bb

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There is a 25% chance that the baby will have floppy ears.

Both the mother and father are Pp.

Pp x Pp

Punnet Square:

        P       p                                 Genotype Ratio: 25% PP, 25% pp, 50% Pp

P    PP    Pp                                Phenotype Ratio: 75% pointy, 25% floppy

p    Pp     pp

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Btw, thank you for posting this question. Genetics is one of my favorite units!



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