Pedigrees and Sex-linked Traits Review

If this pedigree shows an autosomal recessive disorder, what MUST the genotype of individual II-3 be?

• HH
• Hh
• hh
• None of the above

How are individuals III-2 and II-4 related?

• Cousins
• Dad and Daughter
• Uncle and Niece
• Grandpa and Granddaughter

What type of heredity is shown in the pedigree?

• Sex-Linked Dominant

• Sex-Linked Recessive

• Autosomal Dominant

• Autosomal Recessive

How many generations are shown in this pedigree?

• 1
• 2
• 3
• 4

How many kids did the mother and father from the first generation have?

• 2
• 4
• 5
• 6

How are individuals I-2 and III-5 related?

• Grandpa and grandson
• Mom and son
• Uncle and nephew
• Grandma and grandson

Huntington's Disease is a dominant trait.

What is the correct genotype for individual I-2?

• HH

• Hh

• hh

• H-

Give the genotype for person II-1, for this autosomal recessive trait.

• GG

• Gg

• gg

• we cannot be 100% sure of the genotype

If hemophilia is a sex-linked recessive trait, what genotype would individual III-3 have?

• X^bX
• X^bX^b
• X^bY^b
• X^bY

If a trait SKIPS a generation, it is an indication that the trait is....

• dominant
• recessive
• incompletely dominant
• co-dominant