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11) Look at the phenotypes of Beyonce and

Jay Z. If these two had children, could they have
children with a widow's peak? Why or why not? Use
a Punnett Square to explain your answer.
Help me please

User Bibbin
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2 Answers

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Step-by-step explanation:

To determine whether Beyoncé and Jay Z could have children with a widow's peak, we need to consider their genotypes for this trait. A widow's peak is a genetic trait related to the shape of the hairline.

Let's use "W" to represent the dominant allele for a widow's peak and "w" for the recessive allele for a straight hairline.

Now, we need to make some assumptions about Beyoncé and Jay Z's genotypes:

- If both Beyoncé and Jay Z have a widow's peak, their genotype would be "WW."

- If one of them has a widow's peak (Ww) and the other has a straight hairline (ww), then they are carriers of the trait.

Let's consider two scenarios:

Scenario 1:

Beyoncé (WW) x Jay Z (Ww)

In this case, all of their children would inherit one "W" allele from Beyoncé and one "w" allele from Jay Z, resulting in a genotype of "Ww." Since "W" is the dominant allele for a widow's peak, all their children would have a widow's peak.

Scenario 2:

Beyoncé (WW) x Jay Z (ww)

In this scenario, all their children would inherit one "W" allele from Beyoncé and one "w" allele from Jay Z, resulting in a genotype of "Ww." Again, all their children would have a widow's peak because "W" is dominant.

So, regardless of Beyoncé and Jay Z's specific genotypes, their children would inherit at least one "W" allele for the widow's peak trait, and thus, they could have children with a widow's peak.

User Johnmcp
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Final answer:

If both Beyonce and Jay Z have a widow's peak, it is likely that their children could also have a widow's peak with a 50% chance. A Punnett Square can be used to represent the possible genotypes of the parents, with the genotypes WW and Ww resulting in a 50% chance of the offspring having a widow's peak (WW) and a 50% chance of them having a straight hairline (Ww).

Step-by-step explanation:

Widow's peak is a dominant trait in humans. If Beyonce and Jay Z both have a widow's peak, it is likely that their children could also have a widow's peak. Using a Punnett Square, we can represent the possible genotypes of the parents. In this case, we can assign the genotype WW to Beyonce and Ww to Jay Z, as they both exhibit the widow's peak phenotype. When we cross these genotypes, we get a 50% chance of the offspring having a widow's peak (WW) and a 50% chance of them having a straight hairline (Ww).

User Emilio M Bumachar
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8.2k points