Practice Genetic Problems

Cross two parents with the following genotypes: AaBb X AaBb

What is the chance that they will have offspring with the genotype AaBb?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of an offspring with the same phenotype as its parents in a cross between a homozygous black and a heterozygous black guinea pig.

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of the genotype BB in a cross: BB x Bb.

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

Which of the following is heterozygous

• FF
• tt
• Gg
• RR

Which of the following is homozygous dominant?

• Jj
• Rr
• MM
• ee

Which of the following is homozygous recessive?

• rr
• AA
• TT
• Ff

How many letters does a genotype contain?

• 1
• 2
• 3
• 4

The physical appearance of a trait is known as the-

• genotype
• phenotype
• characteristics
• intelligence

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-LS3-2

What is the probability that two parents with the genotype AaBb will produce an offspring with the genotype aabb?

Tags

NGSS.HS-LS3-3