Punnett Square Review

Heterozygous is when...

• the alleles are the same
• the alleles are different
• the alleles are absent
• the alleles are present

Which of the following alleles is homozygous (purebred) recessive?

• Tt
• tt
• TT
• t

How many alleles (letters) do each person carry for a trait?

• 1
• 2
• 3
• 4

How many alleles (letters) does a child get from each parent for each trait?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Dominant alleles are represented by a:

• Male gene
• lowercase letter
• recessive trait
• capital letter

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

Tags

NGSS.HS-LS3-1

AA and Aa always show up as

• dominant
• recessive

Tags

NGSS.HS-LS3-1

aa always shows up as

• dominant
• recessive

Tags

NGSS.HS-LS3-1

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous
• DNA

Which of the following genotypes is homozygous dominant?

• A
• Aa
• AA
• aa