HB 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_

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 

The pedigree is showing a _____________ trait.

• autosomal dominant

• autosomal recessive

• sex linked recessive

What is the genotype of the mother?

• BB
• bb
• Bb
• BB or Bb

What is the genotype of the father?

• AA
• aa
• Aa
• AA or aa

This is a __ trait.

• autosomal recessive

• sex-linked recessive

• autosomal dominant

What is the mode of inheritance shown here?

• Autosomal Dominant
• Autosomal Recessive
• Sex Linked Recessive