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 copies of cells, but it does not specifically address the replacement of alleles.
Step 2
B. gene therapy.
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Answer
Gene therapy is a technique that modifies genes to treat or prevent disease. This includes replacing a defective allele with a normal allele, making it the correct answer.
Step 3
C. a triplet change.
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Answer
A triplet change pertains to alterations in codons in DNA or RNA sequences, but it does not specifically refer to replacing alleles.
Step 4
D. DNA replacement.
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Answer
DNA replacement is a general term and does not specifically indicate the replacement of an allele with its normal counterpart.
