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Pre Test Quiz
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1
Nucleotides are composed of
A)a nitrogenous base, a sugar, and a protein.
B)a sugar, a phosphate, and a protein.
C)a nucleic acid, a phosphate, and a base.
D)a sugar, a phosphate, and a nitrogenous base.
2
The genetic code consists of
A)triplets of nucleotides.
B)amino acids.
C)genes.
D)triplets of proteins.
3
Transcription is defined as
A)the copying of DNA in order to make more DNA.
B)the copying of tRNA to make protein.
C)the process of making protein from mRNA.
D)the process of making mRNA from DNA.
4
What is translated during translation?
A)A sequence of amino acids is translated into protein.
B)The sequence of nucleotides in mRNA is translated into a sequence of amino acids.
C)The nucleotide sequence in DNA is translated into the nucleotide sequence of mRNA.
D)The nucleotide sequence in DNA is translated into the nucleotide sequence of rRNA.
5
If an organism’s DNA is 20% adenine, then it is __________ guanine.
A)20%
B)60%
C)30%
D)80%





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