Transovarian transmission is seen in -: (A) Ticks, (B) Louse, (C) Flea, (D) None
Answer is A. Ans. is 'a' i.e., Ticks o Transovarian transmission in ahropod vector is seen in scrub typhus (mite), RMSF (tick), indian tick typhus (tick) and rickettsial pox (mite).