DNA & RNA

Information on DNA and RNA with structure, differences etc.

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DNA and RNA
DNA RNA
What is it? Deoxyribonucleic acid ­ a sugar and phosphate backbone with
millions of bases attached with hydrogen bonds. It is named
Ribonucleic acid ­ a sugar and phosphate backbone with
millions of bases attached with hydrogen bonds. It is named
after the sugar in its backbone, deoxyribose. after the sugar in its backbone, ribose.
Structure Two strands, double helix shape Single strand
What's it 4 bases - adenine, thymine, guanine and cytosine. Adenine
always bonds to thymine and guanine always bonds to
4 bases ­ adenine, guanine, cytosine and uracil (replaces
thymine). Adenine always bonds to uracil and guanine to
made of? cytosine. cytosine.
What does it Acts as an `instruction manual' or programme for the body.
Carries genetic information and can replicate itself accurately
Acts as a kind of messenger during the construction of
proteins ­ makes a copy of the desired DNA and transports
do? if needed. it. Also acts as the genetic material in viruses.
Where is it In the nucleus, organised into chromosomes. In viruses, throughout cells
found?

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