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Taylor Swift and Travis Kelce are looking to get some insight into any potential future offspring. They completed the Punnett Square to determine potential hair and eye color combinations. Taylor's gametes are on the left side of the square, Travis' are along the top. In this scenario, Taylor has blue eyes and blonde hair, while Travis has brown eyes and brown hair.

Brown hair = B
Blonde hair = b
Brown eyes = W
Blue eyes = w

What percentage of their offspring will have blue eyes AND brown hair?

(1 point)
Responses

100%
100%

75%
75%

50%
50%

10%

1 answer

To determine the potential combinations of hair and eye color for Taylor Swift and Travis Kelce's offspring using a Punnett Square, we first define the genotypes for each trait.

Taylor's (bbww):

  • Hair color: Blonde (bb)
  • Eye color: Blue (ww)

Travis's (BBWW):

  • Hair color: Brown (BB)
  • Eye color: Brown (WW)

Now, we can outline their gametes:

  • Taylor's gametes: bw (since Taylor can only contribute a b for hair and a w for eyes)
  • Travis's gametes: BW (since Travis can only contribute a B for hair and a W for eyes)

Next, we can set up the Punnett Square:

          B       B
        ----------------
    b |   Bb      Bb  
        |   (Brown  (Brown
        |    hair)   hair)  
        ----------------
    b |   Bb      Bb  
        |   (Brown  (Brown
        |    hair)   hair)

Now, considering the offspring's eye colors:

  • All offspring (Bb) will have brown hair (because of the dominant B) and all offspring will have brown eyes (because of the dominant W).

As a result, none of the offspring will have blue eyes since all offspring will have the brown eye genotype (WW).

Thus, the percentage of their offspring that will have blue eyes AND brown hair is 0%.

However, since 0% isn't an option provided, let's clarify the options provided:

  1. 100%
  2. 75%
  3. 50%
  4. 10%

Thus, based on the scenarios presented, the correct answer for the question posed is 0%, which isn't listed but indicates that the offspring will not possess those specific traits.