Unfortunately, the bodys immune defenses have been known to attack the modified genes and make them lose their effects before they can start their task and progress in the field has been held up by the lack of a suitable carrier.
The HIV virus has the ability to escape from, and then destroy, the immune defense cells designed to protect our bodies and this makes it attractive to scientists as a way of secretly conveying replacement genes into patients bodies.
16 FDA has approved the plan of using HIV to cure cancer in humans.
A Right
B Wrong
C Not mentioned
17 The idea of using HIV for a beneficial purpose has been widely accepted.
A Right
B Wrong
C Not mentioned
18 HIV can be safely used to cure cancer only if the deadly genes have been removed.
A Right
B Wrong
C Not mentioned
19 The HIV virus is an excellent warrior to fight the bodys immune cells.
A Right
B Wrong
C Not mentioned
20 Other countries are also expected to begin clinical gene therapy trials soon.
A Right
B Wrong
C Not mentioned
21 It is the lack of money that has held up the progress in using replacement genes to cure cancer.
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