Biology Genetics Quiz #2

In a certain species of animal, black fur (B) is dominant over tan fur (b).  If two heterozygous parents were crossed what percentage of the offspring would be Homozygous dominant?

• 0%
• 25%
• 50%
• 75%

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NGSS.HS-LS3-1

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Snapdragon flowers display incomplete dominance. Red is dominant to white, but heterozygotes have pink flowers. If a red snapdragon and a pink snapdragon were crossed, what percentage of the offspring would be Red?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In chickens, feather color is codominant. If a black chicken BB is mated with one that is black and white (BW) what are the chances of having a chicken that is black and white?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

A red flowered plant breeds with a White flowered plant. The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink flowers?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Round seeds (R) are dominant to wrinkled seeds (r) in pea plants. If two heterozygous parents are crossed, what is the genotypic ratio?

• 1:2:2

• 2:2

• 3:1

• 1:2:1

Tags

NGSS.HS-LS3-3

Sickle cell anemia is an autosomal recessive disorder that affects the ability of blood to clot. If a woman with sickle cell anemia has children with a man who is heterozygous for sickle cell, what are the chances their child will have the disorder?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Blood type exhibits multiple alleles and codominance. There are 4 blood types: A, B, AB, and O. If a heterozygous type B man and a type AB woman want to have a child, what are the chances that they will have a type B child?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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A man who is homozygous for type A blood marries a woman who is heterozygous for type B. What are the possible genotypes of their children?

• AA, AB, AO

• BB, AB

• AB, AO

• Ab

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NGSS.HS-LS3-1

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Duchenne muscular dystrophy (DMD) is a recessive sex-linked disorder which results in muscle degeneration. If a mother who is a carrier has children with a man who does not have DMD, what are the chances of their son having the disorder?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Give the genotype for person III-3

• GG
• Gg
• gg

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2