Lymphocytes That Survive the Maturation Process

question 24

Multiple Choice

Lymphocytes that survive the maturation process:

• A)are now capable of reacting to foreign substances
• B)are now incapable of reacting to foreign substances
• C)migrate to the medulla and other lymphatic tissue
• D)are stored in the bone marrow and liver until an infection occurs
• E)both A and C are correct

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Definitions:

Dominant Alleles

Alleles that mask the effect of other alleles for the same gene in heterozygous individuals, determining the phenotype.

Recessive Alleles

Genetic variations that must be present in two copies (homozygous) to express a trait, as opposed to dominant alleles that require only one copy.

Epistasis

An interaction between genes where the presence or absence of alleles of one gene influences the expression of another gene.

Alleles

Alleles are alternative forms of a gene that arise by mutation and are found at the same place on a chromosome, contributing to genetic variation in populations.