Four of the five answers listed below are

conditions caused by chromosomal
nondisjunction. Select the EXCEPTION.



a. Down syndrome
b. Huntington's disease
c. Turner syndrome
d. Klinefelter's syndrome
e. trisomy 18


B

Biology & Microbiology

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A doctor discovers that her patient can produce antibodies against some bacterial pathogens, but he is unable to protect himself against viral infections. The doctor suspects a disorder in her patient's

A. B cells. B. plasma cells. C. cytotoxic T cells. D. suppressor T cells. E. macrophages.

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During PCR, ____________________ takes place when primers for DNA replication bind to complementary regions on the single-stranded DNA fragments

Fill in the blank(s) with correct word

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A small angle for a branch point in an evolutionary tree indicates

A. extinction. B. punctuated equilibrium. C. gradualism. D. convergent evolution. E. temporal isolation

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A man and women honeymooned in Brazil and both came down with mild symptoms of a Zika infection upon returning home. How long should the couple wait to start a family based on this information?

A) If they are in love they shouldn't wait. B) 6 months C) 8 weeks D) 1 year E) 3 months

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