Pedigree practice If individuals I1 and I2 had

Pedigree practice

If individuals I-1 and I-2 had The pedigree below tracks the presence of attached a fourth child, what is the earlobes through a family's generation. Having attached chance that the child would earlobes is an autosomal recessive trait. have attached earlobes? 1 - 0% 2 - 50% 3 - 75% 4 - 100% Answer is 2 - 50%

The pedigree below tracks the presence of dimples through a family's generation. Having dimples is an autosomal dominant trait. If individual III-3 married a woman who was heterozygous for dimples, what is the percent chance their children will have dimples? 1 - 0% 2 - 50% 3 - 75% 4 - 100% Answer is 3 - 75%

The pedigree below tracks Duchenne Muscular Dystrophy (DMD) through several generations. DMD is an X-linked recessive trait. What is the genotype of individual II-2? 1 - XD Xd 2 -XD XD 3 -XD Xd 4 -Xd Y Answer is 1 - XD Xd

The pedigree below tracks the presence of dimples through a family's generation. Having dimples is an autosomal dominant trait. Which of the following individuals is correctly matched with its genotype? 1 - I 1 (DD) 2 - II 2 (DD) 3 - II 3 (dd) 4 - III 3(Dd) Answer is 4 - III 3 (Dd)

Which individual in the first generation is a carrier? 1 - The male 2 -The female 3 -individual 1 4 -None of the above Answer is 1 - the male

What is the inheritance pattern? 1 - X-linked recessive. 2 - X-linked dominant. 3 - autosomal recessive. 4 -autosomal dominant Answer is 2 - X-linked dominant

What is the inheritance pattern? 1 - X-linked recessive. 2 - X-linked dominant. 3 - autosomal recessive. 4 -autosomal dominant Answer is 4 - autosomal dominant