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DNA synthesis proceeds:
In the 5' to 3' direction.
In the 3' to 5' direction.
From telomere to centromere.
In both directions at the same time.
In the 5’ to 3’ direction
DNA Replication proceeds in a _____ to ______ direction.
3'; 3'
5'; 3'
3'; 5'
5'; 5'
5’;3’
Which of the following are found in a nucleotide?
phosphate group
five carbon sugar
All of these
nitrogenous base
all of these
At a replication fork, the leading strand is synthesized:
after the lagging strand is complete
continuously
first
discontinuously
continuously
Contains Cytosine:
Neither
DNA
Both
RNA
both
Contains ribose:
Neither
DNA
RNA
Both
RNA
Double stranded:
RNA
Both
Neither
DNA
DNA
Chargaff’s rule states that:
the amount of cytosine equals the amount of thymine.
the amounts of all nucleotides are equal.
the amount of cytosine equals the amount of guanine.
the amount of guanine equals the amount of adenine
the amount of cytosine equals the amount of guanine
In a nucleic acid, the bases are always attached to the _______________ carbon of the sugar.
4'
3'
1'
5'
2'
1’
Thymine is a:
Purine
Pyrimidine
pyrimidine
Adenine is a:
purine
pyrimidine
polyrimidine
amino acid
purine
A _______ is a DNA-protein complex.
complementary base pair
nucleotide
sugar-phosphate backbone
nucleosome
nucleosome
Which of the following most accurately describes okazaki fragments?
Short pieces of DNA produced on the leading strand during DNA replication
Pieces of DNA continuously produced on the leading strand during DNA replication
Short pieces of DNA produced on the lagging stand during DNA replication
Pieces of DNA continuously produced on the lagging strand during DNA replication
Short pieces of DNA produced on the lagging stand during DNA replication
A replicated DNA molecule contains one new strand and one old strand.
True
False
true
Contains Guanine:
DNA
Both
Neither
RNA
both
Contains phosphate:
Neither
RNA
DNA
Both
both
A cell that has DNA comprised of 30% Cytosine contains 30% Guanine.
True
False
true
Which carbon(s) is(are) the hydroxyl group(s) attached on a ribonucleotide?
1' and 5'
2' and 3'
5' only
3' only
2' only
2’ and 3’
Uracil is a:
Pyrimidine
Purine
pyrimidine
A _______ is a DNA base with a single ring structure, for example, cytosine and thymine.
pyrimidine
sugar-phosphate backbone
purine
nucleotide
pyrimidine