Exploring Punnett Squares and Genetic Probability

What symbol typically represents a dominant allele?

• Number

• Lowercase letter

• Symbol

• Capital letter

If an individual is homozygous recessive for a trait, what would their genotype look like?

• Two different letters

• Two capital letters

• Two lowercase letters

• No letters

What is the phenotype of an individual with a homozygous dominant genotype for a trait?

• No trait

• Recessive trait

• Dominant trait

• Mixed trait

Tags

NGSS.HS-LS1-1

What does a heterozygous genotype consist of?

• No alleles

• Two recessive alleles

• One dominant and one recessive allele

• Two identical dominant alleles

In a monohybrid cross of Bb x Bb, what is the probability of offspring being heterozygous?

• 50%

• 100%

• 25%

• 75%

Tags

NGSS.HS-LS3-3

What is the result of a cross between a homozygous recessive and a heterozygous genotype in a monohybrid cross?

• 50% dominant: 50% recessive

• 75% dominant: 25% recessive

• All dominant

• All recessive

What phenotype results from a heterozygous genotype in incomplete dominance?

• No visible trait

• Recessive trait

• Blend of both traits

• Dominant trait

In a scenario with incomplete dominance, what color flowers would result from a cross between two pink flowers?

• Red, pink, and white

• Pink and red

• All red

• All pink

In a dihybrid cross, what is the probability of offspring inheriting both recessive traits if both parents are heterozygous for both traits?

• 9.75%

• 25%

• 6.25%

• 12.5%

Tags

NGSS.HS-LS4-3

What is the probability of a baby bear having black fur and brown eyes if one parent is heterozygous for both traits and the other is homozygous recessive for both?

• 100%

• 50%

• 25%

• 75%

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3