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fheraldca@yahoo fheraldca@yahoo
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6 years ago
Down syndrome occurs more often with older mothers than younger mothers because_______.
 
  a. chromosomal nondisjunction increases with maternal age
 b. women's ova become generally less healthy with age
 c. older women are generally less healthy than younger women
 d. younger mothers do not carry genes containing chromosome issues

Question 2

____ is associated with intellectual disability and is a disorder in which males have an extra X chromosome.
 
  a. Klinefelter's syndrome
  b. Turner's syndrome
 c. Fragile-X syndrome
 d. Prader-Willi syndrome

Question 3

____ is the most common form of intellectual disability resulting from chromosomal abnormalities.
 
  a. Klinefelter's syndrome
  b. Fragile-X syndrome
 c. Down syndrome
 d. Prader-Willi syndrome

Question 4

One cause of severe intellectual disability responsible for phenylketonuria (PKU) is ____.
 
  a. chromosomal abnormalities
  b. single gene abnormalities
 c. environmental deprivation
  d. perinatal insult
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anr18anr18
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6 years ago
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6 years ago
Thank you for being such a great website leader! All of your answers were right.
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