Human Genetic Disorders

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

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

This trait is

• autosomal recessive.

• sex-linked recessive.

• autosomal dominant.

What type of heredity is shown in the pedigree?

• Sex-Linked Dominant
• Sex-Linked Recessive
• Autosomal Dominant
• Autosomal Recessive 

What is the mode of inheritance shown here?

• Autosomal Dominant

• Autosomal Recessive

• Sex Linked Recessive