Ch. 12 Inheritance Patterns

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?

• Co-dominance

• Complete dominance

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

• Incomplete dominance

• Multiple alleles

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

• OO

• AB

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

• 3:1

• 1:1

Tags

NGSS.HS-LS3-3

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?

• Incomplete dominance

• Co-dominance

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

• oo

• AB

Which of the following best describes a recessive trait?

• Only expressed when two recessive alleles are present

• 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?

• 25%

• 100%

Tags

NGSS.HS-LS3-3

Duchene Muscular Dystrophy (DMD) is an x-linked recessive trait. The normal gene is dominant to having DMD.

A man that does not have DMD mates with a woman that is a carrier for DMD. what is the Probability of their sons having DMD?

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Phenotype is the physical trait (what you can see)

• True
• False

Tags

NGSS.HS-LS3-2