The structure of DNA is best described as
A) a single chain twisted around itself.
B) a random mixture of deoxyribose,phosphate,adenine,guanine,thymine and cytosine.
C) two complementary chains of nucleotides held together by hydrogen bonds.
D) two chains of phosphate and ribose wound in a double helix.
E) a backbone of nucleotide bases with phosphate and deoxyribose molecules attached.
Correct Answer:
Verified
Q5: Which of the following methods is used
Q6: How many chromosomes are present in a
Q7: Recombinant DNA
A)is the new DNA produced as
Q8: Mutation in bacteria
A)occurs at the rate of
Q9: A resistance factor
A)is a plasmid that carries
Q11: A gene
A)is a piece of DNA which
Q12: Which of the following can be produced
Q13: The ability of some bacteria to take
Q14: Which of the following statements is TRUE?
A)DNA
Q15: The polymerase chain reaction (PCR)is used to
A)duplicate
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