A 10 Base-Pair Single-Stranded DNA Fragment Was Cut by Three

question 56

Multiple Choice

A 10 base-pair single-stranded DNA fragment was cut by three different restriction enzymes to produce the following fragments:
(1) AC, TAC, and GGATG
(2) TA, CGG, and ATGAC
(3) GAC, GAT, and TACG.
The nucleotide sequence of the ten base fragment is

• A) ATGCCTACTG.
• B) TACGGATGAC.
• C) GGATGACTAC.
• D) GACGATTACG.
• E) The sequence cannot be determined from the information given.

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Definitions:

Organic Product

A compound or substance that has been synthesized from living organisms or contains carbon-based molecules.

Mechanism

Describes the step-by-step sequence of elementary reactions by which overall chemical change occurs.

Racemic

Referring to a mixture of equal amounts of two enantiomers of a chiral molecule.

Hydride Shift

A rearrangement reaction where a hydride ion (H-) moves from one carbon atom to another within a molecule, often observed in carbocation rearrangements.