1. Molecules of DNA are composed of long chains of
amino acids
fatty acids
monosaccharides
nucleotides
2. The primary function of DNA is to
make proteins
store and transmit genetic information
control chemical processes within cells
prevent mutations
3. A nucleotide consists of
a sugar, a protein, and adenine
a sugar, an amino acid, and a starch
a sugar, a phosphate group, and a nitrogen-containing base
a starch, a phosphate group, and a nitrogen-containing base
4. The part of the molecule for which deoxyribonucleic acid is named is the
phosphate group
sugar
nitrogen base
none of the above
5. Purines and pyrimidines are
bases found in amino acids
able to replace phosphate droups from defective DNA
names of specific types of DNA molecules
bases found in nucleotides
6. The scientists credited with determining the structure of DNA are
Avery and Chargaff
Hershey and Chase
Mendel and Griffith
Watson and Crick
7. The base-pairing rules state that the following are base pairs in DNA:
adenine - thymine; guanine - cytosine
adenine - thymine; uracil - cytosine
adenine - guanine; thymine - cytosine
uracil - thymine; guanine - cytosine
8. ATTG : TAAC ::
AAAT : TTTG
TCGG : AGAT
GTCC : CAGG
CGAA : TGCG
9. The enzymes responsible for adding nucleotides to the exposed DNA template bases are called
replicases
helicases
DNA polymerases
nucleotidases
10. All of the following are TRUE about the structure of DNA except
every DNA nucleotide contains a sugar, a phosphate group, and a base
short strands of DNA are contained in chromosomes inside the nucleus of a cell
DNA consists of two strands of nucleotides joined by hydrogen bonds
the long strands of nucleotides are twisted into a double helix
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