Genetic Combinations Quiz

Curly hair and the ability to taste the chemical PTC are inherited traits. Curly hair (H) is always dominant to straight hair (h). The ability to taste PTC (P) is always dominant to not being able to taste PTC (p). The alleles for straight hair and a non-taster for PTC are recessive. If both parents are heterozygous for both traits, what would be the genotype of an offspring with straight hair and the ability to taste PTC?

• HhPp

• hhPp

• Hhpp

• hhpp

Tags

NGSS.HS-LS3-1

Curly hair and the ability to taste the chemical PTC are inherited traits. Curly hair (H) is always dominant to straight hair (h). The ability to taste PTC (P) is always dominant to not being able to taste PTC (p). The alleles for straight hair and a non-taster for PTC are recessive. If both parents are heterozygous for both traits, what would be the genotype of an offspring with straight hair and not being able to taste PTC?

• HhPp

• hhPp

• Hhpp

• hhpp

Tags

NGSS.HS-LS3-1

Cystic fibrosis is an autosomal recessive disorder in humans. What is the probability that an offspring will have cystic fibrosis if both parents are carriers of cystic fibrosis?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Cystic fibrosis is an autosomal recessive disorder in humans. What is the probability that an offspring will not have cystic fibrosis if both parents are carriers of cystic fibrosis?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

Achondroplasia is an inherited condition that affects the formation of bone in humans. The allele for achondroplasia (A) is dominant to the unaffected allele (a). If a person who is homozygous dominant has children with a person who is homozygous recessive, what percentage of their children will likely have achondroplasia? Enter your answer in the box. Your answer must be a whole number.

Tags

NGSS.HS-LS3-1

Achondroplasia is an inherited condition that affects the formation of bone in humans. The allele for achondroplasia (A) is dominant to the unaffected allele (a). If a person who is homozygous dominant has children with a person who is homozygous recessive, what percentage of their children will likely not have achondroplasia? Enter your answer in the box. Your answer must be a whole number.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In domesticated dogs, hair type is controlled by two different alleles. The allele for wire hair is (H) and the allele for smooth hair is (h). When two heterozygous dogs are crossed, what percentage of the offspring is expected to be homozygous for smooth hair?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In domesticated dogs, hair type is controlled by two different alleles. The allele for wire hair is (H) and the allele for smooth hair is (h). When two heterozygous dogs are crossed, what percentage of the offspring is expected to be heterozygous for smooth hair?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

A genetic cross involving two unlinked genes is represented. Which genotype is NOT possible in the offspring produced by the cross?

• AaGG

• Aagg

• aaGg

• aaGG

Tags

NGSS.HS-LS3-1

Which of the following statements is accurate when crossing a homozygous dominant parent with a heterozygous parent for any given trait?

Choose TWO correct answers.

• 25% of the offspring will be homozygous recessive.

• 75% of the offspring will be homozygous dominant.

• 100% of the offspring will show the dominant phenotype.

• All of the offspring will show the recessive phenotype.

• None of the offspring will show the recessive phenotype.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2