Quiz: Mendelian Genetics

Widow's peak is an autosomal dominant trait.  A woman who is heterozygous and a man who is homozygous dominant for widow's peak have a child.  What were the chances of the child having widow's peak?

• 50%
• 75%
• 100%
• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

A woman who is heterozygous for hitchhiker's thumb and a man who has the autosomal recessive trait are expecting a child.  What are the chances of the child having the trait?

• 50%
• 100%
• 75%
• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A woman who is heterozygous for Cystic Fibrosis and a man who is homozygous dominant for the trait are expecting their second child.  Should they have concerns that their child would inherit the autosomal recessive trait?

• Yes, they should be concerned.
• There is a 50% chance of inheritance.
• The child will definitely inherit the trait.
• No, they should not have concerns.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A woman who is heterozygous for facial dimples and a man who is also heterozygous for facial dimples have a child.  What were the chances of the child having the autosomal dominant trait?

• 50%
• 25%
• 100%
• 75%

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

A woman who is homozygous dominant for Huntington's Disease and a man who does not have the autosomal dominant disease are concerned about their child inheriting the trait.  What are the chances of their child having the trait?

• No chance of the child having Huntington's Disease.
• 25% chance of the child having Huntington's Disease.
• 50% chance of the child having Huntington's Disease.
• 100% chance of the child having Huntington's Disease.

Tags

NGSS.HS-LS3-1