The key symptom of narcolepsy is
A) dreaming in color.
B) an attack of sleep during the day.
C) anxiety and fear during the waking period.
D) rapid movements of the eyes.
E) the inability to fall asleep.
Question 2
Which of the following is true of sleep?
A) Strong movements accompany each sleep stage.
B) Sleep is preceded by a feeling of dizziness.
C) Humans spend about a third of their lives asleep.
D) Sleep is a state of unconsciousness.
E) The function of sleep is to suppress memory consolidation.
Color-enhanced X-ray of the colon taken during a barium enema.
The Activation-Synthesis Hypothesis of Dreaming
MRI image of brain cancer. The bright blue color indicates where the cancer has metastasized.
The phenotypic distribution in a cross with two traits: seed color and seed shape. Plants in the F2
Polygenic inheritance of wheat kernel color controlled by two additive genes
Morgan’s analysis of genetic linkage of X-linked genes for eye color