Oncogenes were discovered by
$S.B.$ Prussiner
$F.P.$ Rous
$A. $Fleming
$J.M.$ Bishop and $H.E.$ Vermus
Acid in stomach, saliva in the mouth, tears from eyes, all prevent microbial growth belong to which of the following barrier?
Sand fly spreads a particular type of disease by its
Which of the following pairs is correct