Non-Mendelian Punnett Squares

What does a filled in square represent?

• Not affected Female

• Not affected Male

• Affected Male

• Affected Female

Tags

NGSS.HS-LS3-1

Which of the following is an example of incomplete dominance in a Punnett Square?

• Red and white flowers producing pink flowers

• Blood type inheritance

• Eye color inheritance

• Height inheritance

In a Punnett Square showing codominance, what would be the phenotype of a heterozygous individual?

• A blend of both traits

• Only the dominant trait

• Both traits equally expressed

• Only the recessive trait

What is the expected phenotypic ratio in a dihybrid cross showing epistasis?

• 9:3:3:1

• 9:7

• 12:3:1

• 15:1

Which genetic phenomenon is illustrated by a Punnett Square showing a 1:2:1 phenotypic ratio?

• Complete dominance

• Incomplete dominance

• Codominance

• Epistasis

Tags

NGSS.HS-LS3-3

In a Punnett Square, what does a 9:3:4 ratio indicate?

• Incomplete dominance

• Codominance

• Recessive epistasis

• Dominant epistasis

Which of the following is an example of codominance?

• AB blood type

• Pink flowers from red and white parents

• Height in humans

• Skin color

What is the role of a test cross in genetics?

• To determine the genotype of an individual with a dominant phenotype

• To determine the phenotype of an individual with a recessive genotype

• To predict the outcome of a dihybrid cross

• To identify linked genes

In a Punnett Square, what does a 3:1 phenotypic ratio suggest?

• Complete dominance

• Incomplete dominance

• Codominance

• Epistasis

Which of the following describes a situation where one gene affects multiple phenotypic traits?

• Pleiotropy

• Epistasis

• Polygenic inheritance

• Codominance