Defective alleles may result in genetic defects - VCE - SSCE Biology - Question 3 - 2011 - Paper 1
Question 3
Defective alleles may result in genetic defects.
Replacement of a defective allele with a normal allele is called
A. cell cloning.
B. gene therapy.
C. a triplet chan... show full transcript
Worked Solution & Example Answer:Defective alleles may result in genetic defects - VCE - SSCE Biology - Question 3 - 2011 - Paper 1
Step 1
A. cell cloning.
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Answer
Cell cloning refers to the process of creating identical copies of a cell, not specifically replacing defective alleles.
Step 2
B. gene therapy.
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Answer
Gene therapy is the correct answer. It involves directly modifying the genes within an individual's cells to treat or prevent disease, specifically replacing defective alleles with functional ones.
Step 3
C. a triplet change.
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Answer
A triplet change refers to a mutation that affects a codon, but it does not address the replacement of alleles.
Step 4
D. DNA replacement.
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Answer
DNA replacement is not a commonly used term and does not specifically describe the targeted replacement of alleles.
