Genetics Review

The physical appearance of the allele combination the offspring receives

• genotype
• homozygous
• phenotype
• dominant

Tags

NGSS.HS-LS3-1

Black fur (B) is dominant. Find the probability of a black offspring in a cross: bb x bb. 

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

What are the parents' genotypes?

• Homozygous for brown eyes
• Heterozygous for brown eyes
• Homozygous for blue eyes
• Heterozygous for blue eyes

Tags

NGSS.HS-LS3-1

Tallness is dominant in pea plants and is represented by "T." What would the genotype be for a homozygous tall plant?

• Tt
• tt
• TT
• Tall 

What is the missing genotype?

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Plant height is T = tall and t = short. Flower color is P = purple and p = white. Which genotype is NOT possible for a tall plant with purple flowers?

• TtPp
• TTPP
• TTPp
• ttpp

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What % of the offspring in the Punnet square are heterozygous?

• 25%
• 50%
• 75%
• 100%

Tags

NGSS.HS-LS3-3

The law that states two alleles responsible for a trait separate when gametes are formed so that each gamete carries ONLY ONE ALLELE for each trait (DURING MEIOSIS)

• Law of segregation

• Law of independent assortment

Alleles for different genes separate independently of one another in meiosis.

• Law of segregation

• Law of independent assortment

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

NGSS.HS-LS3-3