Gentics Quiz

1. Dominant alleles are-

• capital
• lowercase
• both
• neither

2. Recessive alleles are-

• capital
• lowercase
• both
• neither

3. AA is-

• homozygous dominant
• homozygous recessive
• heterozygous
• none of these

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

4. Tt is-

• homozygous dominant
• homozygous recessive
• heterozygous
• none of these

5. bb is-

• homozygous dominant
• homozygous recessive
• heterozygous
• none of these

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

6. Which of the following is a genotype?

• long hair
• blue eyes
• Gg
• tall

7. Which of the following is a phenotype?

• AA
• AB
• black fur
• Tt

8. Purple is dominant to white. A heterozygous purple flower is crossed with a white flower. What are the genotypes and phenotypes of the offspring?

• 100% Pp (purple)
• 50% Pp (purple); 50% pp (white)
• 75% Pp (purple); 25% pp (white)
• 25% PP, 50% Pp, 25% pp
  75% purple, 25% white

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS4-3

9. Brown is dominant (B) to blue (b). A heterozygous brown eyed father has a baby witha a heterozygous brown eyed mother. What is the probability their children will have blue eyes?

• 0 %
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

10. T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt
• Tt
• Bb
• TT

Tags

NGSS.HS-LS3-1