History Of DNA Question Preview (ID: 10827)


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What are the parts that make up a nucleotide?
a) phosphate, amino acid, sugar
b) sugar, amino acid, nitrogenous base
c) nitrogenous base, amino acid, phosphate
d) sugar, phosphate, nitrogenous base

The center of the DNA molecule, the rungs of the ladder, are composed of
a) phosphates only
b) nitrogenous bases and sugar
c) phosphates and sugars
d) nitrogenous bases only

Which way do the nitrogenous bases in DNA pair up?
a) A and G; T and C
b) A and A; T and T; G and G; C and C
c) A and T; G and C
d) A and C; T and G

The sides of the DNA molecule, the rails of the ladder, are composed of
a) Phosphate only
b) nitrogenous bases and sugars
c) phosphates and sugars
d) nitrogenous bases only

Wilkins and Franklin were responsible for discovering important information about what aspect of DNA?
a) its shape
b) that is was the genetic material
c) its chemical composition
d) its molecular structure

Rosalind Franklin\'s x-ray diffraction images of DNA gave James Watson and Francis Crick information about DNA\'s
a) function
b) location within the cell
c) optimal temperature range
d) structure

DNA is made of
a) nucleotides
b) monosaccharides
c) lipids
d) amino acids

The structure of DNA is referred to as a
a) double helix
b) x-ray diffraction image
c) single helix
d) wagon wheel

The sugar molecule of DNA is referred to as
a) phosphate
b) hydrogen bonding
c) deoxyribose
d) nitrogenous

The backbone or sides of the DNA molecule are made of
a) cytosine
b) sugar and phosphate
c) hydrogen bonding
d) nitrogenous bases

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