Punnett Squares

An allele is a(n)

• form of meiosis

• homozygous

• heterozygous

• form of a gene

Each letter in a genotype represents a(n)

• physical appearance

• Allele

• Mendel

• environmental influence

Which is a heterozygous genotype?

• Hh

• hh

• HH

• all of the above

Which is a homozygous dominant genotype?

• Ff

• ff

• FF

• all of the above

If B=brown and b=blue, we know that blue is ________.

• a gene

• dominant

• recessive

• a genotype

Quick is dominate and slow is recessive.

What is the percentage of quick offspring if a QQ is crossed with a Qq?

• 100%

• 75%

• 50%

• 25%

• 0%

If a homozygous tall pea plant is crossed with a homozygous short pea plant, what is the chance of having a tall pea?

• 50%
• 100%
• 0%
• 25%

Green is dominant to yellow. Two heterozygous green plants are crossed. What are the genotypes of the offspring?

• 100% Gg
• 50% GG, 50% Gg
• 25% GG, 50% Gg, 25% gg
• 75% Gg, 25% gg

Which of the following is a phenotype?

• Aa
• black hair
• heterozygous genes
• mutated DNA

Dominant or recessive?
tt

• Dominant 
• Recessive