The Meselson-Stahl experiment showed that DNA:

A: replication is conservative.
B: exists as a double helix.
C: replication is dispersive.
D: is synthesized in only one direction.
E: replication is semiconservative.


Answer: E: replication is semiconservative.

Biology & Microbiology

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What occurs during leptotene of prophase I?

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The preference of female cichlid fish for brightly colored blue or red males in Lake Victoria provides an example of

____.

a. sympatric speciation b. sexual selection c. allopatric speciation d. reproductive isolation e. ecological speciation

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Smegma is produced by which gland?

A. Skene's B. Tyson's C. Bartholin D. Cowper's

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Glyceraldehyde 3-phosphate is an intermediate in the Calvin-Benson cycle.

Answer the following statement true (T) or false (F)

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