Mendelian Genetics Review

What is the study of heredity called?

• probability

• genetics

• segregation

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of these represents an allele?

• Long fur

• L

• LL

In cats, short hair s dominant over long hair. Which genotype represents a long-haired cat?

• ss

• Ss

• SS

In cats, short hair (S) is dominant over long hair (s). A heterozygous short-haired cat (Ss) mates with a long-haired cat (ss). What genotypes can the offspring be? Select 2 that apply. Hint: Complete a Punnett Square to solve this one!

• SS

• ss

• Ss

Tags

NGSS.MS-LS3-2

In cats, short hair is dominant over long hair. Two heterozygous (Ss) cats mate. What is the genotypic ratio of the offspring? Hint: create a Punnett Square to solve this one!

• 1:1

• 3:1

• 1:2:1

In cats, short hair is dominant over long hair. Two heterozygous (Ss) cats mate. What is the phenotypic ratio of the offspring?

• 3:1

• 1:1

• 1:2:1

Tags

NGSS.MS-LS1-5

Quentin has a black lab dog. He wants to know if his dog is homozygous dominant (BB) or if she has a recessive yellow gene (Bb). What test cross should Quentin perform to find out the genotype of his dog?

• Mate her with another black lab and observe the offspring.

• Mate her with a yellow lab and observe the offspring.

• Apply the Law of Segregation to determine her genotype.

Tags

NGSS.HS-LS3-1

Quentin has a black lab dog. He wants to know if his dog is homozygous dominant (BB) or if she has a recessive yellow gene (Bb). Quentin performed a test cross with his dog. She gave birth to 3 black pups and 2 yellow pups. What is the genotype of Quentin's pet dog?

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Classify each pair of alleles as either homozygous or heterozygous.

Groups:

(a) homozygous

,

(b) heterozygous

• SS

• Aa

• BB

• Ss

• aa

• AA

• Bb

• bb

• ss

Tags

NGSS.HS-LS3-2