LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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New medications had to be developed and tested.
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The effects of viral DNA had to be studied.
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The way in which DNA replicates had to be determined.
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The genes on each chromosome had to be mapped and described.
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Detailed explanation-1: -In what way did gene therapy, the replacement of a faulty gene with a normal one, stimulate medical research? The genes on each chromosome had to be mapped and described. The human genome project mapped out each gene of humans making gene therapy possible.
Detailed explanation-2: -Gene replacement therapy is the technique of recognizing a faulty gene, applying a piece of DNA in its correct form though a viral vector (known as the carrier molecule) to the gene, thus overriding the identified faulty gene with the correct copy.
Detailed explanation-3: -Gene therapies can work by several mechanisms: Replacing a disease-causing gene with a healthy copy of the gene. Inactivating a disease-causing gene that is not functioning properly. Introducing a new or modified gene into the body to help treat a disease.
Detailed explanation-4: -Which best describes the process of gene therapy? Functional genes are inserted into the reproductive cells in order to fix ailments in the next generation.
Detailed explanation-5: -With gene therapy, doctors deliver a healthy copy of a gene to cells inside the body. This healthy gene may replace a damaged (mutated) gene, inactivate a mutated gene or introduce an entirely new gene. Carriers, called vectors, transport these healthy genes into cells.