How is RNA different from DNA? - Yahoo! Answers

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Source: answers.yahoo.com/question/index?qid=20061123191914AARnwAr


how is rna different from dna


DNA versus RNA - Differences Between DNA and RNA

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** DNA versus RNA **

*Differences Between DNA and RNA*

By Anne Marie Helmenstine, Ph.D., About.com Guide

"DNA is easy to recognize on sight because of its characteristic double
helix."

DNA is easy to recognize on sight because of its characteristic double
helix.

Ben Mills
*See More About*

· dna
· rna
· nucleic acids
· biochemistry
· molecules

DNA stands for deoxyribonucleic acid, while RNA is ribonucleic acid.
Although DNA and RNA both carry genetic information, there are quite a few
differences between them. This is a comparison of the differences between
DNA versus RNA, including a quick summary and a detailed table of the
differences.

-Summary of Differences Between DNA and RNA-

1. DNA contains the sugar deoxyribose, while RNA contains the sugar ribose.
The only difference between ribose and deoxyribose is that ribose has one
more -OH group than deoxyribose, which has -H attached to the second (2')
carbon in the ring.

2. DNA is a double stranded molecule while RNA is a single stranded
molecule.

3. DNA is stable under alkaline conditions while RNA is not stable.

4. DNA and RNA perform different functions in humans. DNA is responsible
for storing and transferring genetic information while RNA directly codes
for amino acids and as acts as a messenger between DNA and ribosomes to
make proteins.

5. DNA and RNA base pairing is slightly different, since DNA uses the bases
adenine, thymine, cytosine, and guanine; RNA uses adenine, uracil,
cytosine, and guanine. Uracil differs from thymine in that it lacks a
methyl group on its


Source: chemistry.about.com/od/lecturenoteslab1/a/Dna-Versus-Rna.htm

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