In relation to functional groups, what is an R-group?

a. An R-group is an abbreviation that denotes the addition of a phosphate to any functional group.
b. An R-group is an abbreviation used to show any group to which the functional group is attached, usually at a carbon or hydrogen atom.
c. An R-group indicates that the functional group was formed through dehydration synthesis.
d. An R-group is an abbreviation for an acetyl group in inorganic chemistry.


b. An R-group is an abbreviation used to show any group to which the functional group is attached, usually at a carbon or hydrogen atom.

Biology & Microbiology

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The ________ allows for flexibility in the codon:anticodon interaction at the third position.

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

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Rods and cones both have four segments and each segment has a specialized function

Indicate whether the statement is true or false.

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A codon is a group of three bases that can specify more than one amino acid.

a. true b. false

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The concept that Earth's present landscape is due to gradual geological processes was proposed by

A) Malthus. B) Aristotle. C) Buffon. D) Lamarck. E) Lyell.

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