M4

Question 1

Law: Some alleles are dominant over other alleles for a given gene.

Answer 1

Law of Dominance

Question 2

Law: Two alleles segregate randomly during formation of gametes.

Answer 2

Principle of Segregation

Question 3

Law: Two genes will assort independently and randomly from each other.

Answer 3

Independent Assortment

Question 4

An alternative form of a gene.

Answer 4

Allele

Question 5

What is the allele that occurs most frequently in a population?

Answer 5

Wild-type Allele

Question 6

Changes to this allele (wild-type allele) is termed as?

Answer 6

Mutation

Question 7

The phenotype of the heterozygous is intermediate between two homozygotes.

Answer 7

Incomplete Dominance

Question 8

It is also known as ________ because neither allele in a pair is fully expressed.

Answer 8

Blending

Question 9

Two nonidentical alleles of a pair express two different phenotypes in the heterozygote.

Answer 9

Codominance

Question 10

Who discovered codominance?

Answer 10

Karl Landsteiner & Philip Levin

Question 11

An individual may have more than one pair of alleles.

Answer 11

Multiple Alleles

Question 12

Blood groups are controlled by how many alleles?

Answer 12

Three Alleles

Question 13

If a certain genotype causes death.

Answer 13

Lethal Genotypes/Genes

Question 14

An organism dies if it has two lethal copies of the allele.

Answer 14

Homozygous Lethal Allele

Question 14

It is usually stillbirth or miscarriage.

Answer 14

Lethal Genotypes/Genes

Question 15

An organism dies if it has one copy of the allele (Huntington).

Answer 15

Heterozygous Lethal Allele

Question 15

The expression of one gene pair masks or modifies the effect of another.

Answer 15

Epistasis

Question 16

Interaction of two or more gene pairs at different loci influence the same trait, but one allele has an overriding effect on the phenotype.

Answer 16

Epistasis

Question 16

The phenotype gets altered by epistatic gene.

Answer 16

Hypostatic Gene

Question 17

Homozygous presence of an allele may prevent or override the expression of other alleles at a second locus.

Answer 17

Epistatic Gene