Mitochondrial DNA Is Helpful in Obtaining a DNA Profile for Very

question 11

Multiple Choice

Mitochondrial DNA is helpful in obtaining a DNA profile for very degraded genetic material because

• A) cells have many mitochondria, and therefore several copies of mtDNA sequences.
• B) the mitochondrial outer membrane protects it from being damaged.
• C) mitochondria contain oxidative enzymes that protect the DNA.
• D) mtDNA consists of a single helix, so it cannot be unwound.
• E) it uses uracil instead of thymine, which is a more stable nitrogenous base.

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Definitions:

Cognitive Dissonance

A state of mental uneasiness caused by possessing multiple opposing beliefs, ideas, or values concurrently.

Operant Conditioning

An engagement strategy in education where the robustness of a behavior is regulated through reinforcement or punitive measures.

Group Polarization

The tendency for a group's prevailing opinions to become more extreme following group discussions.

Erikson's Stages

A theory of psychosocial development delineating eight stages that an individual passes through from infancy to late adulthood, each characterized by a different psychological conflict.