Phenotypes

Knowing that right-handedness is dominant to being left-handed, what PHENOTYPE would a person have if they were heterozygous for the trait?

• Left-handed

• rr

• Right-handed

• Rr

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many dominant alleles must be present for the organism to display the dominant phenotype?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Round seeds (R) are dominant to wrinkled seeds (r) in pea plants. A homozygous recessive plant crosses with a heterozygous plant. Is is possible that their offspring could have wrinkled seeds?

• Yes

• No

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An organism’s physical appearance, or visible traits. 

• Genotype

• Phenotype

• Beanotype

• Notype

What are the possible phenotype(s) of the offspring? (A-Brown hair; a-blond hair)

• 50 % Brown Hair and 50% Blond Hair

• 25 % Brown Hair and 75% Blond Hair

• 75 % Brown Hair and 25% Blond Hair

• 0% Brown Hair and 100% Blond Hair

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the phenotype of an organism with a genotype of Tt if tallness (T) is dominant over shortness (t)?

• Tall

• Short

• Medium

• Cannot be determined

In a genetic cross between two heterozygous individuals (Aa), what percentage of the offspring are expected to display the dominant phenotype?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

Which of the following best describes a phenotype?

• The genetic makeup of an organism

• The physical appearance of an organism

• The DNA sequence of a gene

• The evolutionary history of a species