How does colostrum provide initial protection against diseases to new-born infants? Give one reason.

A number of infectious diseases have ill-effects on human health while some of these are fatal. AIDS is one of the highly serious pandemic diseases. Though a number of drugs are available but none of the these provides absolute protection against the disease. Discuss the following: What is peculiar about HIV than the other viruses?

A number of infectious diseases have ill-effects on human health while some of these are fatal. AIDS is one of the highly serious pandemic diseases. Though a number of drugs are available but none of the these provides absolute protection against the disease. Discuss the following: What are dificulties against developing the AIDS vaccine?

A number of infectious diseases have ill-effects on human health while some of these are fatal. AIDS is one of the highly serious pandemic diseases. Though a number of drugs are available but none of the these provides absolute protection against the disease. Discuss the following: Which vaccine trials are being conducted in the world to develop AIDS vaccine?

A number of infectious diseases have ill-effects on human health while some of these are fatal. AIDS is one of the highly serious pandemic diseases. Though a number of drugs are available but none of the these provides absolute protection against the disease. Discuss the following: How HIV attacks and multiples inside host cell?

What is that prevents a child to suffer from a disease he/ she is vaccinated against? Give one reason.

How does vaccination protect a person from a disease?

Medically it is advised to all young mothers that breastfeeding is the best for their new born babies.Give reasons in support of your answer.

How does the angle of minimum deviation of a glass prism vary, if the incident violet light is replaced by red light? Give reason.

Dry hydrogen chloride gas does not turn blue litmus red whereas hydrochloric acid does. Give one reason.

How does the resistivity of a conductor and a semiconductor vary with temperature? Give reason for each case.