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Question
What is a restriction fragment length polymorphism (RFLP)?
Options
A sequence of DNA complementary to a mRNA molecule.
A variation in length of DNA fragments due to inherited differences in proteins produced.
A variation in length of DNA fragments due to inherited differences in highly repetitive DNA.
A variation in length of DNA fragments due to random differences in highly repetitive DNA.
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Solution
A variation in length of DNA fragments due to inherited differences in highly repetitive DNA.
Explanation:
Restriction fragment length polymorphisms (RFLPs) are differences in the lengths of DNA fragments produced by cuts made by restriction enzymes at specific sequences. These length variations arise from inherited differences in repetitive DNA sequences and are useful in genetic identification and DNA fingerprinting techniques.
