A nasal spray for cystic fibrosis patients, which contains adenovirus particles carrying a normal human CFTR gene, is an example of
A) ex vivo gene therapy.
B) in situ gene therapy.
C) in vitro gene therapy.
D) in vivo gene therapy.
D) in vivo gene therapy.
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The lower end of the the uterus narrows and leads to the ________ which opens into the vagina.
A) cervix. B) labia. C) rectum. D) ovary.
Some signaling chemicals, such at oligosaccharins, are only synthesized when a tissue is damaged
Indicate whether the statement is true or false.
The cycle of viral infection in which the viral DNA is integrated into the host's DNA is called the ________ cycle.
A. lysogenic B. lysol C. lytic D. lysozyme E. lysosome
Seth ordered lobster at a restaurant and realized that the outer shell was made of a tough carbohydrate similar to that used to make the carapace of a cockroach. What do you think the outer shell of the lobster is made of?
A. Cellulose B. Glycogen C. Fibrin D. Chitin E. Amylopectin