Welcome to the Quiz!
This quiz contains 13 questions from a mix of 1 subtopics.
What is DNA made up of?
fatty acids
monosaccharides
amino acids
nucleotides
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Which of the following is NOT a component of a DNA nucleotide?
nitrogenous base
amino acid
phosphate group
pentose sugar
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Which of the following is NOT a nitrogenous base found in DNA?
uracil
thymine
cytosine
adenine
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What type of bond joins nucleotides together in DNA?
hydrogen bond
ionic bond
phosphodiester bond
peptide bond
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What type of reaction links nucleotides together in DNA?
reduction
hydrolysis
condensation
oxidation
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During the formation of a phosphodiester bond between two nucleotides, which of the following molecules is released as a by-product?
ammonia
oxygen
carbon dioxide
water
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What is the shape of the DNA molecule?
double helix
straight ladder
single helix
triple helix
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How are the two polynucleotide strands in DNA arranged?
parallel
antiparallel
random
perpendicular
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Which bases pair together in DNA?
adenine and cytosine
adenine and thymine
cytosine and thymine
thymine and guanine
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How many hydrogen bonds form between adenine and thymine?
4
2
1
3
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How many hydrogen bonds form between cytosine and guanine?
4
3
1
2
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What ensures the stability and integrity of DNA's double helix structure?
ionic bonds between bases
covalent bonds between bases
hydrophobic interactions between bases
hydrogen bonds between specific base pairs
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DNA is a polymer made up of monomers called .
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