Mendelian Traits

Cross 2 heterozygous tall pea plants. Tall (T) is dominant to short (t). What fraction of the offspring do you predict will be tall?

• 1/4

• 2/4

• 3/4

• 4/4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

In guinea pigs, black fur color is dominant to brown. What is the expected ratio of offspring if 2 heterozygous guinea pigs were mated?

• BB: 2Bb: 1bb

• 0BB: 2Bb: 2bb

• 1BB: 1Bb: 2bb

• 2BB: 2Bb: 0bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

In horses, coat color can be brown, white or brown with white spots. What would be the expected genotypes and phenotypes if a white horse mated with a brown with white spots horse? What type of inheritance pattern is this?

• incomplete dominance; 0BB: 2BW: 2WW

• codominance; 0BB: 2BW: 2WW

• incomplete dominance; 1BB: 2BW: 1WW

• codominance; 1BB: 2BW: 1WW

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many alleles do you inherit from EACH parent for a specific trait?

• 1

• 2

Tags

NGSS.HS-LS3-1

The genetic makeup (alleles) for a trait is called the ...

• genotype

• phenotype

The physical expression of a trait is called the ...

• genotype

• phenotype

Genotype: Aa

• homozygous dominant

• homozygous recessive

• heterozygous dominant

Tags

NGSS.HS-LS3-1

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?

• Incomplete Dominance

• Co dominance

• Independent assortment

• Recessive inheritance

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In roses, petal color can be white, red, or pink. What would be the expected genotypes and phenotypes if a red rose was crossed with a pink rose? What type of inheritance pattern is this?

• incomplete dominance; 2RR: 2PP: 0WW

• codominance; 2RR: 2PP: 0WW

• incomplete dominance; 2RR: 2RW: 0WW

• codominance; 2RR: 2RW: 0WW

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A man with type A blood and a woman with type B blood have 4 kids. Each child has a different blood type. What are the most likely genotypes of the man and woman?

• Man: IAIA

  Woman: IBIB

• Man: IAi

  Woman: ii

• Man: ii

  Woman: IBi

• Man: IAi

  Woman: IBi

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2