How does silencing of specific m RNA interference prevent parasitic infection?

How did process of RNA interference help to control the nematode from infecting the roots of tobacco plants?

How does specific heat vary with temperature.

How does RNA interferance help in developing resistance in tobaco plant against nematode infection?

How does zona pelucida of ovum help in preventing polyspermy?

What is the basic principle of vaccination? How do vaccines prevent microbial infections? Name the organism from which hepatitis B vaccine is produced.

How does DNA differ from RNA with respect to Base residue.

How does DNA differ from RNA with respect to Sugar.

How does a transgenic plant of tobaaco protect it self from nematode parasites?

How does filarial worm affect the body of infected person(s)?

How does transmission of HIV-infection generally occurs?