Non-Mendelian Punnett Squares

What belongs in Box 4?

• Y

• YY

• Yy

• yy

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is an example of non-Mendelian inheritance?

• Incomplete dominance

• Complete dominance

• Law of segregation

• Independent assortment

• A blend of both traits

• Only trait A

• Only trait B

• Both traits equally expressed

Which genetic phenomenon is illustrated by a Punnett square where a heterozygous genotype results in a phenotype that is a blend of both alleles?

• Codominance

• Incomplete dominance

• Epistasis

• Pleiotropy

What is the expected phenotypic ratio in the offspring of a cross between two heterozygous individuals showing incomplete dominance?

• 1:2:1

• 3:1

• 9:3:3:1

• 1:1

In a dihybrid cross involving epistasis, what is the modified phenotypic ratio observed?

• 9:3:3:1

• 9:7

• 12:3:1

• 15:1

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

• Pleiotropy

• Epistasis

• Polygenic inheritance

• Linkage

In a Punnett square, what does a 1:2:1 genotypic ratio indicate in terms of inheritance pattern?

• Mendelian inheritance

• Incomplete dominance

• Codominance

• Epistasis

Which of the following is an example of codominance in humans?

• ABO blood group system

• Height

• Skin color

• Eye color

What type of inheritance pattern is shown when a single trait is controlled by multiple genes?

• Polygenic inheritance

• Monogenic inheritance

• Codominance

• Incomplete dominance