Gymnosperms that produce resin, form male and female cones, and consist of tracheidbased xylem are classified as:

A. conifers.
B. ginkgos.
C. cycads.
D. gnetophytes.


A

Biology & Microbiology

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A hydrogen bond involving only parts of the backbone in a single strand of a protein would be

considered part of the ____ structure of the protein

a. primary b. secondary c. tertiary d. quaternary e. linear

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Which of the following have the longest DNA sequences?

A) VNTRs B) STRs C) Thymine dimers D) Base pairs

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One of the primary functions of RNA molecules is to _____

A) transmit genetic information to offspring B) function in the synthesis of proteins C) make a copy of itself, thus ensuring genetic continuity D) act as a pattern or blueprint to form DNA

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Each of the following is caused by prions EXCEPT

A) sheep scrapie. B) kuru. C) Creutzfeldt-Jakob disease. D) bovine spongiform encephalopathy. E) rabies.

Biology & Microbiology