Pedigrees

What type of heredity is shown in the pedigree?

• Sex-Linked Dominant

• Sex-Linked Recessive

• Autosomal Dominant

• Autosomal Recessive

If this pedigree shows a recessive disorder, what MUST the genotype of individual 4 be?

• HH

• Hh

• hh

There are no carriers for Huntington's Disease- you either have it or you don't. Is Huntington's disease caused by a dominant or recessive trait?

• Dominant
• Recessive

Huntington's Disease is a dominant trait.
What is the correct genotype for individual I-2?

• HH
• Hh
• hh
• H_

Does this pedigree show a dominant or recessive trait?

• Dominant
• Recessive

Hemophilia is a recessive sex-linked trait. If H = normal & h = has hemophilia, which genotype represents a male with hemophilia. 

• X^HY
• X^HX^h
• X^hX^h
• X^hY 

Give the genotype for person III-3

• GG
• Gg
• gg

This trait is recessive.  What is the genotype for person II-1?

• GG
• Gg
• gg
• can't be determined

What is the genotype of the mother?

• BB
• bb
• Bb
• BB or Bb

This is a __ trait.

• autosomal recessive

• sex-linked recessive

• autosomal dominant