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Match Each of the Following Terms with Its Correct Definition

Question 64

Matching

Match each of the following terms with its correct definition.

Premises:

Responses:

true breeding

The result of a cross between two first-generation (F₁) organisms

incomplete dominance

The physical traits of an organism

probability

An organism that is heterozygous for two different traits

epistasis

Any organism with 2 identical alleles of a gene

recessive

When one allele cannot completely mask the effects of another allele

pleiotropy

The first generation of offspring from the cross of two true-breeding parents

genotype

The likelihood of something occurring as a matter of chance

phenotype

When one allele completely masks the effect of another

homozygote

When a single allele has multiple phenotypic effects

heterozygote

When alleles at one locus mask the expression of alleles at a different locus

F₂generation

Where an allele is found on a chromosome

polygenic inheritance

When displayed traits are unchanged over multiple generations

F₁generation

When different genes contribute to a particular phenotype

locus

An F₁heterozygote (for a single trait)

dominance

The genetic makeup of an organism

monohybrid

Any organism with 2 different alleles of a gene

dihybrid

True-breeding plants used in an initial cross

P generation

The allele that is expressed only if two identical copies are present

Premises:

true breeding

incomplete dominance

probability

epistasis

recessive

pleiotropy

genotype

phenotype

homozygote

heterozygote

F₂generation

polygenic inheritance

F₁generation

locus

dominance

monohybrid

dihybrid

P generation

Responses:

The result of a cross between two first-generation (F₁) organisms

The physical traits of an organism

An organism that is heterozygous for two different traits

Any organism with 2 identical alleles of a gene

When one allele cannot completely mask the effects of another allele

The first generation of offspring from the cross of two true-breeding parents

The likelihood of something occurring as a matter of chance

When one allele completely masks the effect of another

When a single allele has multiple phenotypic effects

When alleles at one locus mask the expression of alleles at a different locus

Where an allele is found on a chromosome

When displayed traits are unchanged over multiple generations

When different genes contribute to a particular phenotype

An F₁heterozygote (for a single trait)

The genetic makeup of an organism

Any organism with 2 different alleles of a gene

True-breeding plants used in an initial cross

The allele that is expressed only if two identical copies are present

Correct Answer:

Premises:

Responses:

true breeding

incomplete dominance

probability

epistasis

recessive

pleiotropy

genotype

phenotype

homozygote

heterozygote

F₂generation

polygenic inheritance

F₁generation

locus

dominance

monohybrid

dihybrid

P generation