Genetics

What is it called when the alleles in a genotype are different?

• Dominance

• Heterozygous

• Homozygous

• Recessiveness

Which pair of alleles is an example of homozygous recessive?

• bb

• BB

• Bb

Which pair of alleles is an example of homozygous dominant?

• tt

• TT

• Tt

Tags

7.11(A), 7.11(B), 7.11(C)

Which pair of alleles is an example of heterozygous alleles?

• ll

• LL

• Ll

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In a Punnett square, a lower case letter stands for a ____________ allele.

• dominant

• recessive

• homozygous

• heterozygous

Hair color, height, eye color and freckles are examples of human traits. What do we call the physical expression of the genetic material of an organism?

• genetics

• heredity

• genotype

• phenotype

Which of the following alleles is homozygous (purebred) recessive?

• Tt

• tt

• TT

• t

Which of the following genotypes is homozygous dominant?

• A

• Aa

• AA

• aa

Heterozygous is when...

• the alleles are the same

• the alleles are different

• the alleles are absent

• the alleles are present

In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?

• rr

• R

• RR

• RR or Rr

Tags

NGSS.HS-LS3-2