Genetics Review

Categorize the following genotypes.

Groups:

(a) homozygous dominant

,

(b) homozygous recessive

,

(c) heterozygous

• dd

• Dd

• AA

• Aa

• aa

• Cc

• Ee

• CC

• ee

• Ff

• bb

• DD

• ff

• cc

• EE

• FF

• BB

• Bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the phenotype of PP if purple flowers are dominant to white flowers?

• purple flowers

• white flowers

• PP

• Pp

• pp

What is the phenotype of Pp if purple flowers are dominant to white flowers?

• purple flowers

• white flowers

• PP

• Pp

• pp

What is the phenotype of tt if tall plants are dominant to short plants?

• tall plant

• short plant

• TT

• Tt

• tt

What is the phenotype of bb if brown eyes are dominant to blue eyes?

• brown eyes

• blue eyes

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the genotype of homozygous straight hair if straight hair is dominant to curly?

• straight hair

• CC

• SS

• Cs

• ss

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the genotype of a heterozygous plant if red flowers are dominant to yellow?

• yellow flowers

• red flowers

• RR

• Rr

• Yy

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the genotype of round heads if pointed heads are dominant to round heads?

• Pp

• Rr

• pp

• rr

• RR

Tags

NGSS.HS-LS3-2

If round seeds are dominant to wrinkled seeds, what percentage of the offspring would be round if Rr is crossed with Rr?

(Use a Punnett Square)

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

If brown hair is dominant to red hair, what percentage of the offspring would be red if Bb is crossed with bb?

(Use a Punnett Square)

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3