Genetics Review Quiz

What is the difference between genotype and phenotype?

• Genotype describes what you look like.

• Phenotype describes what you look like.

• Genotype describes what alleles you have.

• Phenotype describes what alleles you have.

What is the heterozygous phenotype?

• Red

• Blue

• AA

• aa

• Aa

What is the homozygous recessive genotype?

• red

• blue

• AA

• aa

• Aa

Freckles are dominant (F) over no freckles (f). If both parents are heterozygous. What is the probability that their children will be heterozygous?

• 0%

• 25%

• 50%

• 75%

• 100%

Freckles are dominant (F) over no freckles (f). If both parents are heterozygous. What is the probability that their children will have no freckles?

• 0%

• 25%

• 50%

• 75%

• 100%

Which mechanism explains how both A and B antigens produce type AB blood?

• Complete Dominance

• Polygenic Inheritance

• Codominance

• Incomplete Dominance

In guinea pigs, the allele for rough coat (R) is dominant to the allele for smooth coat (r). A heterozygous guinea pig is crossed with a homozygous recessive guinea pig. What percentage of offspring will be homozygous recessive?

• 0%

• 25%

• 50%

• 100%

Look at the Punnett Square. What's the probability of having the recessive offspring?

• 100%
• 75%
• 50%
• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS4-3

What are the parents' genotypes?

• Homozygous for brown eyes
• Heterozygous for brown eyes
• Homozygous for blue eyes
• Heterozygous for blue eyes

Tags

NGSS.HS-LS3-1

A type of gene that can be hidden is called

• genotype
• recessive
• dominant
• allele