Genetics Blitz Review

An organism's physical appearance or visible traits:

• Genotype

• Phenotype

An organism's genetic makeup, or allele combination.

• Phenotype

• Genotype

Having two identical (same) alleles for a trait.

• Homozygous

• Heterozygous

Having two different alleles for a trait.

• Homozygous

• Heterozygous

Which of the following is homozygous recessive?

• rr
• AA
• TT
• Ff

Which of the following is homozygous dominant?

• Jj
• Rr
• MM
• ee

Tags

NGSS.HS-LS3-1

What is the probability of heterozygous offspring?

• 25%

• 50%

• 0%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS4-3

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

"The offspring's phenotype is an intermediate (blended) phenotype of the two parental phenotypes"

• Incomplete dominance

• Codominance

"The offspring's phenotype has independent and equal expression of both parental phenotypes"

• Incomplete dominance

• Codominance