In nondisjunction one or more pairs of chromosomes ____

a. are deleted
b. are duplicated
c. undergo translocation


d. undergo random mutations
e. fail to separate


ANSWER: e

Biology & Microbiology

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Photosynthetic mesophyll tissue is a type of ____

a. collenchyma b. parenchyma c. periderm d. sclerenchyma e. pericycle

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Which statement describes bacteria?

a. Most bacteria are harmful. b. Bacteria only inhabit surfaces. c. Bacteria outnumber human cells in our bodies. d. Bacteria are restricted in their distribution to certain ecosystems. e. Bacteria are the most common organisms in the Domain Eukarya.

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Functional snRNPs are assembled in the

a. cytoplasm. b. nucleolus. c. nucleoplasm. d. PML body.

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Influenza viruses are classified according to their hemagglutin and __________ proteins.

A. neuraminidase B. amphiphilic C. nucleic D. arabinose E. polymorphic

Biology & Microbiology