Examlex
Regulatory proteins shut off transcription by binding to a site immediately in front of the promoter and often even overlapping the promotor.This site is referred to as the
Sympathetic System
Part of the autonomic nervous system that activates the body's rapid involuntary response to dangerous or stressful situations (fight or flight response).
Parasympathetic Branch
Part of the autonomic nervous system responsible for stimulating "rest-and-digest" or "feed and breed" activities that occur when the body is at rest.
Type A Characteristics
Personality traits including competitiveness, impatience, and a sense of urgency, often linked to stress and heart disease.
Hyperarousal
A condition of increased psychological and physiological tension marked by such effects as reduced pain tolerance, anxiety, and exaggerated startle reflex.
Q16: When selection acts to eliminate one extreme
Q19: All of the following animal cells are
Q25: Which one of the following statements about
Q27: The strand of DNA that is not
Q39: A search for sequences that are complementary
Q42: Identical copies of genes that can be
Q46: Looking at the differences in protein-encoding gene
Q71: The two copies of each chromosome in
Q71: Both extremes of an array of phenotypes
Q78: Messenger RNA molecules are copies of DNA;they