Biology · Principles of Inheritance and Variation
At the DNA level, sickle cell anaemia is caused by a single base-pair substitution mutation that replaces:
- 1Adenine with Thymine
- 2Adenine with Uracil
- 3Thymine with Adenine✓
- 4Thymine with Cytosine
Correct answer
Thymine with Adenine
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