Differences between RNA and DNA

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RNA- Single polynucleotide chain
DNA- Double polynucleotide chain
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RNA- Smaller molecular mass (20 000- 2 000 000)
DNA- Larger molecular mass (100 000- 150 000 000)
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RNA- May have a single or double helix
DNA- Always a double helix
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RNA- Pentose sugar is ribose
DNA- Pentose sugar s deoxyribose
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RNA- Organic bases present are adenine, uracail, guanine and cytosine
DNA- Organic bases present are adenine, thymine, guanine and cytosine.
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RNA- Ratio of adenine and uracil to guanine and cytosine varies
DNA- Ration of adenine and thymine to cytosine and guanine is one.
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RNA- Manufactured in the nucleus but found throughout the cell
DNA- Found almost entirely in the nucleus
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RNA- Amount varies from cell to cell (and within a cell according to metabolic activity)
DNA- Amount is constant for all cells of a species (except gametes and spores)
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RNA- Chemically less stable
DNA- Chemically very stable
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RNA- May be temporary- existing for short periods only
DNA- Permanent
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RNA- Three basic forms: Messenger, Transfer and Ribosomal RNA
DNA- Only one basic form, but with an almost infinite variety within that form
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Other cards in this set

Card 2

Front

DNA- Larger molecular mass (100 000- 150 000 000)

Back

RNA- Smaller molecular mass (20 000- 2 000 000)

Card 3

Front

DNA- Always a double helix

Back

Preview of the back of card 3

Card 4

Front

DNA- Pentose sugar s deoxyribose

Back

Preview of the back of card 4

Card 5

Front

DNA- Organic bases present are adenine, thymine, guanine and cytosine.

Back

Preview of the back of card 5
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