Down syndrome is also known as trisomy-21 because individuals with Down syndrome ____

a. have three distinct facial features by the 21st week of pregnancy
b. show three distinct temperament patterns by the 21st week of infancy
c. have a third chromosome on the 21st pair
d. have 21 genes on the 3rd pair of chromosomes

Answer: C

Psychology

You might also like to view...

Current neurochemical hypotheses regarding schizophrenia focus on

a. dopamine deficiencies. b. excessive levels of dopamine. c. a broad array of neurotransmitters. d. dietary deficiencies.

Psychology

The needs associated with metamotivation are called

a) meta-needs, or M-needs. b) deficiency needs, or D-needs. c) growth needs, or G-needs. d) being needs, or B-needs.

Psychology