Human embryos must possess ________ to be viable.

A. at least one Y chromosome
B. at least one X chromosome
C. two Y chromosomes
D. three Y chromosomes


Answer: B

Psychology

You might also like to view...

What is a weakness of the theory that the interpretation of body symptoms, such as an increased heart rate, could lead to increasing anxiety and, ultimately, to panic??

a. ?Patients are more worried about appearing weird than about heart attacks. b. ?Panic does not increase levels of the stress hormone cortisol. c. ?Patients are not affected by an injection of sodium lactate. d. ?Panic does not increase levels of the neurotransmitter orexin.

Psychology

_____ believed that to a large extent a person is a conscious architect of his or her own personality

A) Karen Horney B) Alfred Adler C) Carl Jung D) Erik Erikson

Psychology

A serious problem with using hypnosis to facilitate memory recall is that:

A) hypnosis can help recall of only recent memories (over the last 2 years). B) people may make up memories to satisfy hypnotic suggestions. C) memories of criminal acts are unlikely to be recovered during hypnosis. D) memories recalled during hypnosis may relieve physical pain.

Psychology

Which of the following methods can be used to detect a certain class of receptors in the brain?

A. macroelectrodes B. microdialysis C. immunocytochemistry D. optogenetic methods

Psychology