Franklin’s assignment at King's College was to

investigate the structure of
a. proteins.
b. coal.
c. DNA.
d. carbohydrates.
e. lipids.


Answer: c

Biology & Microbiology

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The primary transcript is transported directly to the cytoplasm and prepared for translation

A. true B. false

Biology & Microbiology

Is antigenic shift alone likely to lead to influenza pandemics?

A. Yes-ONLY antigenic shift can lead to the large-scale mixing of gene elements required to produce a pandemic flu strain. B. No-ONLY antigenic DRIFT can lead to the large-scale mixing of gene elements required to produce a pandemic flu strain. C. Perhaps-but it would most likely be a mixture of antigenic shift AND drift that would result in a pandemic strain. D. No-antigenic SHIFT is responsible for changes in the hemagglutinin protein, while antigenic DRIFT is responsible for changes in the neuraminidase protein. You must have changes in both to lead to a pandemic strain.

Biology & Microbiology

Guard cells contain chloroplasts

Indicate whether the statement is true or false.

Biology & Microbiology

Which of the following statements about allostery is true?

(a) Allosteric regulators are often products of other chemical reactions in the same biochemical pathway. (b) Allosteric regulation is always used for negative regulation of enzyme activity. (c) Enzymes are the only types of proteins that are subject to allosteric regulation. (d) Binding of allosteric molecules usually locks an enzyme in its current conformation, such that the enzyme cannot adopt a different conformation.

Biology & Microbiology