This is a short revision quiz for chapter 8 of the AQA AS Biology student book. It covers DNA and meiosis.

1. AS AQA Biology
UNIT 2
Chapter 8 Revision Quiz
DNA and Meiosis
Total: ___ / 20
___ %

2. 1. What are the three components of a nucleotide? (3)
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2. What are the two double-ring bases? (2)
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3. Which one of these pairs with cytosine? (1)
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4. How many hydrogen bonds form between them? (1)
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5. What shape does the DNA form? (1)
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6. What is a gene? (2)
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7. How many bases code for an amino acid? (1)
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8. How many different amino acids regularly occur in
proteins? (1)
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3. 9. What is a ‘stop code’? (1)
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10.
What do you call chromosomes that pair up? (1)
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11.
What is an allele? (1)
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12.
What is the main difference between mitosis and
meiosis? (1)
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13.
What do you call a cell with a full set of
chromosomes? (1)
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14.
How many divisions are there in meiosis? (1)
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15.
What is it called when chromatids exchange
equivalent parts? (1)
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16.
What is it called when one of the homologous pairs
is chosen to go into the daughter cells at the 1st division of
meiosis? (1)
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