The Globin Gene Cluster Contains Stretches of DNA That Are

question 24

Multiple Choice

The globin gene cluster contains stretches of DNA that are homologous to the sequences of functional globin genes, but contain severe accumulated mutations that render them nonfunctional. Most of these noncoding regions have no known function. They are considered to be evolutionary relics and are called _________.

• A)reliquaries
• B)pseudoemissaries
• C)pseudogenes
• D)pseudoproteins
• E)pseudoglobins

---

Definitions:

Homeostasis

The regulatory process organisms use to maintain stable internal conditions despite external changes.

Teratogens

Substances or agents that can cross the placental barrier and produce fetal deformities when taken or absorbed by the mother during pregnancy.

Genetic Mutations

Permanent alterations in the DNA sequence that makes up a gene, which can result in variations in physical traits and health conditions.

Defective Alleles

Variant forms of a gene that may cause a malfunction or absence of the gene's normal function.