Genetics

In a population of flowers, red color (R) is dominant over white color (r). If two heterozygous red flowers are crossed, what is the probability that an offspring will be white?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-3

In a certain species of birds, long beaks (L) are dominant over short beaks (l). If a homozygous long-beaked bird is crossed with a short-beaked bird, what percentage of the offspring will have long beaks?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

In a population of rabbits, black fur (B) is dominant over white fur (b). If two heterozygous black rabbits are mated, what fraction of the offspring will be homozygous recessive?

• 1/4

• 1/2

• 3/4

• 4/4

Tags

NGSS.HS-LS3-3

In a population of plants, tall (T) is dominant over short (t). If a heterozygous tall plant is crossed with a short plant, what is the probability that an offspring will be tall?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

In a certain species of fish, blue scales (B) are dominant over green scales (b). If a homozygous blue-scaled fish is crossed with a green-scaled fish, what percentage of the offspring will have green scales?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-3

In a population of insects, striped wings (S) are dominant over plain wings (s). If two heterozygous striped-winged insects are mated, what fraction of the offspring will have plain wings?

• 1/4

• 1/2

• 3/4

• 4/4

Tags

NGSS.HS-LS3-3

In a population of cats, black fur (B) is dominant over white fur (b). If a heterozygous black cat is mated with a white cat, what is the probability that an offspring will be black?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

In a population of flowers, purple color (P) is dominant over white color (p). If two heterozygous purple flowers are crossed, what is the probability that an offspring will be purple?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

In a population of dogs, short hair (H) is dominant over long hair (h). If a homozygous short-haired dog is crossed with a long-haired dog, what percentage of the offspring will have short hair?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

In a population of birds, red feathers (R) are dominant over blue feathers (r). If two heterozygous red-feathered birds are mated, what fraction of the offspring will have blue feathers?

• 1/4

• 1/2

• 3/4

• 4/4

Tags

NGSS.HS-LS3-3