Genetics and Inheritance Patterns Quiz

In a Punnett square showing the inheritance of blood type, what pattern is demonstrated when both type A and type B alleles are expressed in the phenotype of an AB blood type individual?

• Incomplete dominance

• Complete dominance

• Co-dominance

• Multiple alleles only

When red flowers (RR) are crossed with white flowers (rr), producing all pink flowers in the F1 generation, this demonstrates:

• Co-dominance

• Incomplete dominance

• Complete dominance

• Multiple alleles

In human blood types, what is the genotype of a person with type O blood?

• AB

• AA or AO

• BB or BO

• OO

A cross between two heterozygous parents (Bb × Bb) will result in what ratio of phenotypes if B is dominant over b?

• 1:2:1

• 3:1

• 1:1

• 4:0

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Which inheritance pattern results in a phenotype that is a mixture of both parental traits, such as a red and white flower producing pink offspring?

• Multiple alleles

• Co-dominance

• Incomplete dominance

• Complete dominance

What blood type genotype shows co-dominance in the ABO blood system?

• oo

• AA

• AB

• BO

If a trait follows Mendel's law of segregation, what percentage of gametes from heterozygous parents (Aa) will carry the dominant allele?

• 25%

• 75%

• 50%

• 100%

Which of the following best describes a recessive trait?

• Always expressed in the phenotype when present

• Only expressed when two recessive alleles are present

• Masks the expression of other alleles

• Results in a blended phenotype

In a monohybrid cross between two heterozygous parents (Tt × Tt), what is the probability of producing offspring with the recessive phenotype?

• 50%

• 75%

• 25%

• 100%

Tags

NGSS.HS-LS3-3

Match the following

• passed from parent to offspring

• Allele

• two or more versions of a gene

• Gene

• a specific characteristic

• Trait

Tags

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NGSS.HS-LS3-2