DNA and RNA - 1.DNA is deoxyrionucleic acid and contains...

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ribonucleic acid and contains the 5 carbon sugar ribose. 2. DNA is a double stranded molecule . RNA is single stranded. 3. DNA contains 4 bases Adenine (A) , Cytosine (C), Guanine (G) and Thymine (T). In RNA Thymine is replaced by Uracil(U) but also contains A, C and G. 4. Both DNA are composed of sub units called nucleotides. 5. A Nucleotide has 3 sub units: A 5 carbon sugar, An inorganic phosphate and one of four bases. 6. The nucleotides in both DNA and RNA are linked by chemical bonds between the sugar of one nucleotide and the Phosphate of the next to form a 'sugar- phosphate backbone'. 7. RNA has several types: Messenger RNA(mRNA), Transfer RNA (tRNA) and Ribosomal (rRNA) 8. Proteins are coded for by sequences of three bases on the nucleic acid strands. 9.. A series of three bases on DNA is called a Triplet. On mRNA a sequence of three bases is called a codon and on tRNA it is called an anticodon. 10. mRNA is copied from one strand of DNA by a process called Transcription.
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This note was uploaded on 12/29/2011 for the course BIO 552 taught by Professor Dsff during the Spring '11 term at Abraham Baldwin Agricultural College.

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DNA and RNA - 1.DNA is deoxyrionucleic acid and contains...

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