Term Papers Lab

DNA is the single most important molecule found within cells. It is a stable polynucleotide, which contains coded information for inherited characteristics. It is contained in chromosomes in the nucleus of an eukaryot cell. The essential features of the Watson-Crick model are summarised below.
1. The two helical polynucleotide chains are coiled around a common axis. The two chains have opposite polarity i.e. they are antiparrallel.
2. The regular repeating sugar phosphate backbone of each strand lies on the outside of the helix. The purine and pyrimidine bases project inwards at 900 to the axis of the helix.
3. The two strands are held together by hydrogen bonding between pairs of bases such that guanine always pairs with cytosine and adenine always pairs with thymine; this is called complementary base pairing
3. The diameter of the helix is 2.0 nm and adjacent bases are separated by 0.34 nm and inclined at 360 relative to each other. This means that each complete turn of...

Join Now to view the rest of this term paper!
Members: Login to view this research paper.

Title: Nucleic Acids
Approximate word count: 438
Approximate pages: 2 (250 words per double-spaced page)

With the Term Papers Lab Membership Pass, you get instant access to every term paper on this site, including the term paper on Nucleic Acids, for as long as you remain a member! That's over 90,000 online term papers and written research papers at your fingertips!

You could be reading our college term papers on Nucleic Acids in less than two minutes!

Other term papers sites charge almost $100 for a single term paper. At Term Papers Lab, you can get instant access to over 90,000 termpapers and sample research papers for as little as $29.95!

1. Nucleic Acids
   

   Nucleic Acids. DNA is the single most important molecule found within cells. ... The
   Nitrogen-Containing Bases There are two types of bases found in nucleic acids. ...

2. Cantor
   

   ... challenged to; separate a mixture of nucleic acids (purifying plasmid DNA contaminated
   with RNA), to use agarose electrophesis to analyze and compare the ...

3. Cell-Penetrating Peptide Conjugates Of Peptide Nucleic Acids (Pna) ...
   

   Cell-Penetrating Peptide Conjugates Of Peptide Nucleic Acids (Pna) As
   Inhibitors Of Hiv-1 Tat-Dependent Trans-Activation In Cells. ...

4. Dna
   

   ... The bases are usually referred to by their initial letters; so DNA contains A,
   G, C and T. Two types of pentose are found in nucleic acids. ...

5. Biochem Essay
   

   ... Nucleic acids DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are the two
   main nucleic acids. They are used to store genetic information. ...