Concept 2: Complex Inheritance

For an XX female to express a recessive sex-linked trait, she must have....

• two recessive alleles
• a Y chromosome 
• one recessive allele
• two dominant alleles

Eye color occurs in a continuous range because it is affected by the interaction of many genes, making it a(n)

• autosomal trait

• polygenic trait

• codominant trait

• sex-linked trait

Blonde hair and blue eyes are commonly inherited together. Which of following patterns of inheritance explains this?

• Sex-linked

• Linked genes

• Multiple alleles

• Codominance

Which pair of genes in the diagram to the right would be most likely to be inherited together?

• A and B
• A and C
• C and D
• D and E

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Mutations can be caused by all of the following except

• Radiation

• Politics

• Chemicals

• Viruses

In order for a mutation to be passed on from parent to offspring, the mutation must occur in....

• gametes
• somatic cells
• brain cells
• any cell of the body

A man with type B blood marries a woman with Type AB blood. Based on what you know about blood types, what is the only blood type not possible?

• A

• O

• AB

• B

Label the following genotypes as heterozygous or homozygous: Uu

• Heterozygous
• Homozygous

Label the following genotypes as heterozyous or homozygous: tt

• Heterozygous 
• Homozygous

Label the following genotypes as heterozygous or homozygous: FF

• Heterozygous
• Homozygous