Chemistry Quiz: Chapter 13

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The sequence of one strand of DNA is 5' TCGATC 3'. The sequence of the complementary strand would be

A) 3' AGCTAG 5'

Translation requires _______.

A) transfer RNA B) ribosomal RNA C) messesnger RNA D) an enzyme to join amino acids together by means of a peptide bond E) all of E- ALL OF THESE

Recombinant DNA in genetic engineering is

DNA formed by combining portions of DNA from two different organisms

Cytosine and guanine can form two hydrogen bonds between them.

False

The base adenine is always paired with ___.

Thymine

______ occurs in RNA in place of thymine.

Uracil

Which of the following have been produced by genetic engineering?

human insulin

Considering the structure of double stranded DNA, what kinds of bonds hold one complementary strand to the other?

hydrogen

The bonding forces between two DNA strands in a double helix are

hydrogen bonds

Chemicals which cause mutations are called

mutagens

-phosphate-sugar-phosphate-sugar- is an example of a ____ backbone

nucleic acid

The monomers that are chemically linked together to form nucleic acids are called

nucleotides

DNA is a polymer of _________.

nucloetides

Which of the following comprise a nucleic acid backbone?

phosphate and sugar units

The process by which an exact copy of a DNA molecule is produced is called

replication

RNA contains the sugar ______.

ribose

Proteins are synthesized at the _______.

ribosomes

Which of the following bases is found only in DNA?

thymine


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