Biology

Q. In higher vertebrates the immune system can distinguish self cells from non -self ones. If this property is lost due to genetic abnormality and it attacks self cells it…

Q. Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain : (a) Activated pathogens (b) Harvested antibodies (c) Gamma globulin (d) Attenuated pathogens Solution…

Q. Which of the following viruses is not transferred through semen of an infected male? (a) Human immuno deficiency virus (b) Chikungunya virus (c) Ebola Virus (d) Hepatitis B virus…

Q. HIV that causes AIDS, first starts destroying : (a) Leucocytes (b) Helper T-lymphocytes (c) Thrombocytes (d) B-lymphocytes Solution : Correct option : B AIDS is caused by Human Immunodeficiency…