Genetics Quiz

The physical (what you can see) expression of a genetic trait is .........

• mutation

• crossing over

• genotype

• phenotype

Tags

NGSS.HS-LS1-1

Having 2 of the same genes for a trait (purebreed) ......

• protein

• homozygous

• heterozygous

• hybrid

Having 2 different genes for a trait (hybrid)

• homozygous

• heterozygous

• purebreed

• genome

Which of the following would be considered HETEROZYGOUS???

• BB

• Bb

• bb

Which of the following alleles is HOMOZYGOUS RECESSIVE?

• AA

• bb

• Cc

• DD

Different forms of a gene are called .....

• traits

• alleles

• heredity

• genetics

Tall is dominant to short. A homozygous tall plant is crossed with a short plant. What will be the phenotypes of the offspring?

• 100% tall

• 50% tall, 50% short

• 75% tall, 25% short

• 25% tall, 75% short

Tags

NGSS.HS-LS3-1

In pea plants, yellow is dominant and green are recessive. Cross two heterozygous plants. What are your offspring?

• 100% yellow

  0% green

• 75% yellow

  25% green

• 75% green

  25% yellow

• 50% yellow

  50% green

In pea plants, inflated pea pods are dominant over flat pea pods, which are recessive. Cross a heterozygous parent with a homozygous recessive parent. What are the results?

• 100% inflated

  0% flat

• 50% inflated

  50% flat

• 100% flat

  0% inflated

• 75% inflated

  25% flat

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In pea plants, round seed are dominant and wrinkled seeds are recessive. Cross a heterozygous parent with a homozygous round parent. What are the possible PHENOTYPES of the offspring?

• RR, Rr, rr

• RR, Rr

• Round and wrinkled

• Round

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2