Genetics

How many affected females are present? 

• 1
• 2
• 3
• 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

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

Tags

NGSS.HS-LS3-1

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

• HH
• Hh
• hh
• None of the above

Tags

NGSS.HS-LS3-1

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

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• HH
• Hh
• hh
• H_

Tags

NGSS.HS-LS3-1

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 

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

 An individual with two different alleles for a specific trait is said to be _____________.

• homozygous
• heterogenous
• homogenous
• heterozygous

Tags

NGSS.HS-LS3-2

 Which of these would best be described as a phenotype?

• blue eyes
• mutation
• Bb
• Tt

Tags

NGSS.HS-LS4-4

Colorblindness is a sex-linked recessive disorder. A normal woman whose father was colorblind marries a man with normal color vision. What percentage of their sons will be colorblind?

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Hemophilia is a sex-linked recessive disorder. A woman with hemophilia marries an unaffected man whose father had hemophilia. What percentage of their daughters will have hemophilia?

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2