Biology Quiz 12-1 Question Preview (ID: 33321)
DNA.
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The subunits of DNA are called nucleotides.
a) true
b) False
c)
d)
Which of the following show the correct base pairing in DNA?
a) Adenine-Guanine
b) Adenine-Cytosine
c) Guanine-thymine
d) Adenine-Thymine
The structure of DNA can be described as a double helix or twisted ladder.
a) True
b) False
c)
d)
Which of the following show the correct base pairing in DNA?
a) Adenine-Thymine
b) Adenine-Cytosine
c) Guanine-Cytosine
d) Both A and C
The nitrogen bases in DNA are held together by covalent bonds.
a) True
b) False
c)
d)
What is released when the bonds between nitrogen bases in DNA are broken?
a) water
b) light
c) heat
d) gas
Nucleotides are made up of a sugar, phosphate, and hydrogen base.
a) True
b) False
c)
d)
A DNA nucleotide consists of a
a) sugar-phosphate-hydrogen base
b) salt-phosphate-hydrogen base
c) sugar-phosphate-nitrogen base
d) sugar-hydrogen-nitrogen base
Uracil is one of the four nitrogen bases in DNA.
a) True
b) False
c)
d)
Which of the following lists part of a nucleotide?
a) ribose-phosphate-thymine
b) ribose-phosphate-uracil
c) deoxyribose-phosphate uracil
d) deoxyribose-phosphate-cytosine
The structure of DNA can best be described as
a) a twisted ladder
b) a double helix
c) spiral staircase
d) all of these
Who first discovered the structure of DNA?
a) Robert Hooke
b) Watson and Crick
c) Holmes and Watson
d) Coach Korth
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