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
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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
Which of the following have the longest DNA sequences?
A) VNTRs B) STRs C) Thymine dimers D) Base pairs
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
Each of the following is caused by prions EXCEPT
A) sheep scrapie. B) kuru. C) Creutzfeldt-Jakob disease. D) bovine spongiform encephalopathy. E) rabies.