Assertion :Gene therapy is the insertion of genes into an individual’s cells
and tissues to treat diseases especially hereditary diseases.
Reason : It does so by replacing a defective mutant allele with a functional one or gene targeting which involves gene amplification.
Reason : It does so by replacing a defective mutant allele with a functional one or gene targeting which involves gene amplification.
Answer & explanation
Correct answer: option 4
Gene therapy is the insertion of genes into an individual’s cells
and tissues to treat diseases especially hereditary diseases. It does
so by replacing a defective mutant allele with a functional one or
gene targeting which involves gene amplification. Viruses that attack
their hosts and introduce their genetic material into the host cell as
part of their replication cycle are used as vectors to transfer healthy
genes or more recently portions of genes.