The Distance Between Two Genes on a Linkage Map Represents

question 6

Multiple Choice

The distance between two genes on a linkage map represents

• A) the frequency of crossing over that occurs between the genes.
• B) the percentage of the DNA sequence between the two genes that has been published.
• C) the percentage of descendants that do not show both traits.
• D) the exact distance between the genes.
• E) the amount of recombinant DNA molecules produced in the laboratory using the two genes.

---

Definitions:

Synaptic Vesicles

Small sacs within a neuron that store neurotransmitters, which are chemicals released to communicate with adjoining neurons at a synapse.

Dopamine System

A neural system involved in reward, motivation, and the regulation of mood, whose key neurotransmitter is dopamine.

Parkinson's Disease

A progressive neurological disorder characterized by motor symptoms such as tremors, stiffness, slowness of movement, and postural instability.

Forebrain

the anterior part of the brain, including the cerebral hemispheres, thalamus, and hypothalamus, responsible for sensory and associative functions.