Homozygous and Heterozygous

What is the genotype of an individual with two identical alleles for a particular trait?

• Heterozygous

• Dominant

• Homozygous

• Recessive

What is the genotype of an individual with two different alleles for a particular trait?

• homozygous

• heterozygous

• dihybrid

• monohybrid

Tags

NGSS.HS-LS3-1

If an organism has the genotype TT, what is its phenotype for a specific trait?

• The phenotype for the specific trait is dominant.

• The phenotype for the specific trait is heterozygous.

• The phenotype for the specific trait is incomplete dominance.

• The phenotype for the specific trait is recessive.

If an organism has the genotype Tt, what is its phenotype for a specific trait?

• The phenotype for the specific trait would be the recessive trait, as the recessive allele (t) will be expressed.

• The phenotype for the specific trait would be the dominant trait, as the dominant allele (T) will be expressed.

• The phenotype for the specific trait would be the absence of the trait, as the genotype is heterozygous.

• The phenotype for the specific trait would be a combination of both dominant and recessive traits.

Tags

NGSS.HS-LS3-2

If an organism has the genotype tt, what is its phenotype for a specific trait?

• The phenotype for the specific trait would be the heterozygous trait.

• The phenotype for the specific trait would be the recessive trait.

• The phenotype for the specific trait would be the dominant trait.

• The phenotype for the specific trait would be a combination of dominant and recessive traits.

Tags

NGSS.HS-LS3-2

What term is used to describe the physical appearance of an organism based on its genotype?

• genotype

• phenotype

• chromosome

• allele

What term is used to describe the genetic makeup of an organism?

• allele

• phenotype

• genotype

• chromosome

Tags

NGSS.HS-LS3-1

In a heterozygous individual, which allele determines the phenotype?

• Neutral allele

• Dominant allele

• Recessive allele

• Incomplete allele

In a homozygous individual, how many different alleles are present for a specific trait?

• 1

• 0

• 3

• 2

Tags

NGSS.HS-LS3-1

What is the probability of a homozygous dominant individual passing on the dominant allele to its offspring?

• 50%

• 100%

• 25%

• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3