Differential Gene Expression Is Defined as The

question 22

Multiple Choice

Differential gene expression is defined as the:

• A) ability of some cells to arrest their development under varying environmental conditions.
• B) progressive fixation of the fates of a cell's descendants.
• C) genetic variation found in various somatic cells of the same individual.
• D) regulation during development that varies the type and quantity of gene products among cells.
• E) constitutive expression of all genes in the somatic cells.

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Definitions:

Linnaean Categories

Hierarchical levels of classification in biology developed by Carl Linnaeus, including kingdom, phylum, class, order, family, genus, and species.

Hierarchical

Describing a system or organization in which people or groups are ranked one above the other according to status or authority.

Domain

(1) A structural and functional region of a protein. (2) The broadest taxonomic category; each domain includes one or more kingdoms.

Paraphyletic Group

A group of organisms that includes an ancestral species and some, but not all, of its descendants.