Genetics Test Review RETAKE

Green allele (G) is dominant over yellow (g). If you cross two heterozygous green plants, what percent will be green?

• 25%

• 75%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Black fur (B) is dominant over the allele for brown fur (b). What is the ratio of the offspring with brown fur?

• 1 out of 4

• 2 out of 4

• 3 out of 4

• 4 out of 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

What is the missing genotype in the 4th square?

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the probability that a roan cow (RW) will have R alleles in its gametes that are formed during meiosis?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Flowers that can be Red(RR), White (WW), or Pink RW are said to demonstrate __________________.

• complete dominance

• codominance

• incomplete dominance

Green allele (G) is dominant over yellow (g). Crossing which parents will result in 4:4 heterozygous offspring?

• GG x Gg

• GG x gg

• gg x Gg

• Gg x Gg

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The physical expression of the trait?

• Genotype

• Phenotype

• Alleles

• Traits

Chicken feathers can be black (BB), white (WW) or checkered(black &white). This is an example of---

• complete dominance

• codominance

• incomplete dominance

Which of the following is an example of genotype?

• tall plant

• purple flower

• HH

Which statement is NOT correct?

• Phenotype is the physical expression of a trait.

• Genotype is the genetic makeup of a cell in an organism.

• Heterozygous alleles are different.

• Homozygous alleles are different.