In retroviruses, what helps the newly synthesized dsDNA insert itself into the host genome? 

A. Gag polyprotein
B. Integrase
C. Reverse Transcriptase
D. Provirus


Answer: B

Biology & Microbiology

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________ is used to measure the amount of a chemoattractant encountered over time.

Fill in the blank(s) with the appropriate word(s).

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All species of Staphylococcus

A. lack spores. B. are motile. C. have capsules. D. produce coagulase. E. All of the choices are correct.

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A person has the genotype XXY. What syndrome does this person have and what sex are they?

A. Klinefelter....male B. Klinefelter ....female C. Turner...male D. Turner....female E. no syndrome...male

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What major factor limits cell size?

a. The rate at which it can process nutrients b. The rate at which it can remove wastes c. The size of the nucleus d. The surface area to volume ratio e. The size of the plasma membrane

Biology & Microbiology