Genetics Review

If green is dominant over purple, then what is the genotype for this individual?

• Purple
• Green
• GG
• gg

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Tt is-

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

Tags

NGSS.HS-LS3-2

If a pea plant were homozygous recessive for height, how would its alleles be represented?

• TT
• Tt
• tt
• tT

A __________ is a segment of DNA that codes for a particular protein, which leads to a particular trait.

• Gene
• Allele
• Codon
• Nucleotide

Tags

NGSS.HS-LS1-1

Which of the following best describes a GENOTYPE?

• The allele/genetic makeup of an organism.
• The physical expression of a trait.

Tags

NGSS.MS-LS4-4

Which of the following is an example of a heterozygous genotype?

• RR
• Rr
• rr

What is the predicted percentage of homozygous recessive offspring in this cross?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

Why do we see only tall plants in the second generation?

• The gene for tall height is dominant
• The gene for short height is dominant
• The gene for tall height is recessive
• The parents did not have the tall gene

Tags

NGSS.HS-LS3-1

The dominant trait in this punnett square is

• yellow pea seeds
• green pea seeds
• there is no dominant seed

Tags

NGSS.HS-LS3-1

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

• 0 %
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3