Mendelian Genetics with Marvel Superheroes

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Spider-Man has two alternate versions of the web gene, W and w. These alternate versions of the same gene are called

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alleles.

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Thor has a widow's peak (V-shaped hairline) because he has the allele combination WW. This makes Thor

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homozygous dominant.

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Black Widow's genotype for widow's peak if she is homozygous recessive.

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ww.

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Black Panther has the genotype Pp, where P = panther and p = non-panther. He shows the panther phenotype. This is an example of Mendel's Law of

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Dominance.

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Captain Marvel is heterozygous for the flamefist gene (Ff). When she produces gametes, 50% get the F allele, and 50% get the f allele. This is an example of Mendel's Law of

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Segregation.

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Hulk's father was true-breeding for the green skin and Hulk's mother was true-breeding for non-green skin. This makes Hulk

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a hybrid.

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Hulk and She-Hulk are both heterozygous for the green skin gene. What percentage of their children will have the green skin phenotype?

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75%

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Spider-Man has a genotype Ww and Mary Jane Watson has a genotype ww, what would be the genotypic ratio of their children?

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1:1

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If Captain America's genotype is SsRR, what types of gametes will he produce?

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SR, SR, sR, sR

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Expected phenotypic ratio of children from parents with genotype NnFf x NnFf

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9:3:3:1