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Dna Structure (biology Only) (GCSE Biology)
The following is a GCSE Biology test covering 'Dna Structure (biology Only)' from the broader topic Inheritance, Variation And Evolution. The test is geared towards the AQA exam board style syllabus.Incorrect: 0
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Which of the following describes the basic building block of DNA?
What is the relationship between a gene and a chromosome?
DNA replication is described as semi-conservative. What does this mean?
Why are some mutations described as beneficial for evolution?
Which of the following is an effect a mutation in a gene might have?
What is the role of helicase in DNA replication?
How many hydrogen bonds normally form between a cytosine and a guanine base pair?
Which molecule is directly complementary to a DNA strand with the base sequence ATCG?
In the DNA double helix, which bases pair together by complementary base pairing?
Which of the following best defines an allele?
What term describes a stretch of DNA that codes for a single protein?
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