3.Cytosine makes up 42% of the nucleotides in a sample of DNA from an organism.

Question

3.Cytosine makes up 42% of the nucleotides in a sample of DNA from an organism. Approximately what percentage of the nucleotides in this sample will be thymine?
A. 31%
B. 8%
C. 42%
D. 16%
E. It cannot be determined from the information provided.


4.At a specific area of a chromosome, the sequence of nucleotides below is present where the chain opens to form a replication fork:


3' C C T A G G C T G C A A T C C 5'

An RNA primer is formed starting at the underlined T (T) of the template. Which of the following represents the primer sequence?
A. 5' G C C T A G G 3'
B. 3' G C C T A G G 5'
C. 5' A C G T T A G G 3'
D. 5' G C C U A G G 3'
E. 5' A C G U U A G G 3'

Explanation / Answer

3) B
4)C

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