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- symptoms of fragile X syndrome are more severe in progeny generation than in the parental generation. Is an example of 1) variable expressive 2) epistasis 3) pleiotropy 4) reduced penetrance 5) anticipationWhich is an example of pleiotropy?Draw a Punnet square indicating the F2 genotypes from the mating of an F1 male (QQBbHh) with an Fi female (QQBÜHH). Note: Make sure to write all the heterozygous genotypes as Gg, not gG.
- 1. A) Apply the concept of sex linkage to explain why color blindness is more prevalent in men than in women. B) Mary is concerned that she may be a carrier for hemophilia, a sex-linked condition located on the X chromosome. Mary is married to John, who doesn't have hemophilia. Assuming Mary is a carrier, what are the genotype ratios expected for Mary and John's kids (specify for boys and for girls)? C) Mary and John have 2 boys, none of them has hemophilia. Can we use this fact as proof that Mary does not carry the allele for hemophilia? Explain your argument.Compare and contrast the molecular and phenotypic features of Prader-Willi and Angelman syndromes.Is blood type an example of pleiotropy?