311. The causative agent of mad-cow disease is a

A Prion
B Worm
C Bacterium
D Virus
Answer :   Prion
Discuss Question

312. Bacteria which utilize inorganic compounds as a source of electron (Hydrogen) are called

A Photo organotrops
B Photo lithotrops
C Phototrophs
D Chemotrops
Answer :   Photo lithotrops
Discuss Question

313. In Amoeba which controls the cytoplasmic osmality

A Nucleus
B Ectoplasm
C Biurets
D Contractile vacuole
Answer :   Contractile vacuole
Discuss Question

314. The fungus without mycelium is

A Phytophota
B Rhizopus
C Saccharomyces
D Microsporum
Answer :   Saccharomyces
Discuss Question

315. TMV contains

A Single stranded RNA
B D.S. - RNA
C D.S. - DNA
D S.S. - DNA
Answer :   Single stranded RNA
Discuss Question

316. The infective nature of tobacco mosaic disease was discovered by

A Ivanowsky
B Mayer
C Beijerinck
D Stanley
Answer :   Mayer
Discuss Question

317. Stanley got the noble prize for

A Discovering virus
B Crystallizing virus
C Naming phages
D Discovering antibiotic
Answer :   Crystallizing virus
Discuss Question

318. Enzyme synthesis does not occur in

A Fungi
B Viruses
C Mycoplasma
D Bacteria
Answer :   Viruses
Discuss Question

319. At what stage septa are formed in Albugo

A At the time vegetative growth
B At the time of haustorial formation
C At the time of sexual & asexual reproduction
D Never Formed
Answer :   At the time of sexual & asexual reproduction
Discuss Question

320. Ecology of fresh water lake is called

A Oceanography
B Ethanobotany
C Limnology
D Lac culture
Answer :   Limnology
Discuss Question


Practice More MCQ Question on Biology Section