Generally the number of vaccinations are …….. to get complete immunity (a) 2 to 3 (b) 2 only (c) 3 only (d) 4 only The cells which produce the antibodies by stimulating the B–cells are known as …
“Disease” is a very wide term. Any change from the normal state that causes discomfort or disability or impairs the health may be called a disease. The oxford English Dictionary defines disease as “a condition of the body or …
General Introduction Pesticide is (a) Food grain preservative (b) Fungus killer (c) Insect killer (d) (b) and (c) both Mostly pesticides are (a) Useful (b) Harmful (c) Beneficial (d) All the …
Which of the following pesticide is of lipophilic nature (a) 2, 4 – D (b) DDT (c) BHC (d) All the above Most of the insecticides affect on [MP PMT 2000] (a) CNS (b) …
Since the dawn of human civilization, man has been trying to improve the agriculture. Modern agriculture employs a number of chemicals for enhancing crop yield and protecting the same. Synthetic fertilizers are added to replenish the various nutrients …
Huskies are (a) Dogs (b) Yak (c) Thick furred dogs used by Eskimos (d) Nothing A milch breed of cow is (a) Haryana (b) Malvi (c) Kankrej (d) Sahiwal Buffalo is better than cow …
Honey mainly consist of monosaccharides Both the chambers contain about 7 rectangular wooden frames called comb frames arranged vertically. The vertical frames are filled with comb foundation sheet. These sheets are made of wax and contain hexagonal imprints. They are …
The rearing of animals for specific purposes is called domestication, and such animals are called domestic animals. Domestication of animals started during the ‘hunting and gathering phase’ of human civilization. Man domesticates a variety of animals for food …
History of man is only about 50,000 years old. In the course of human history there have been three major explosions, each corresponding to a major changes in the environment. The first population explosion occurring about 20,000 years ago. It …
Indian Air Force AFCAT Recruitment 2021- Apply Online for 334 Vacancy Indian Air Force has given an employment notification for the recruitment of AFCAT (02/2021) for Flying Branch & Ground Duty (Technical and Non-Technical) Branches. NCC Special Entry/ Meteorology Entry for …
PSPCL Recruitment 2021 – Apply Online for 2632 Asst Lineman, Clerk & Other Vacancy Punjab State Power Corporation Limited (PSPCL) has given an employment notification for the recruitment of Revenue Accountant, Clerk, Junior Engineer/ Electrical, Assistant Lineman (ALM), Asst Sub Station …
Punjab State Cooperative Bank Various Vacancy Recruitment 2021 – Apply Online for 856 Posts Punjab State Cooperative Bank (PSCB) has announced a notification for the recruitment of Senior Manager, IT Officer, Clerk cum DEO, Steno Typist Vacancies. Those Candidates who …
PSTCL Various Vacancy Recruitment 2021 – Apply Online for 490 Vacancy Punjab State Transmission Corporation Limited (PSTCL) has given an employment notification for the recruitment of Assistant Engineer/ OT (Electrical, Civil), Account Officer, Assistant Manager, Junior Engineer, Lower Divisional Clerk/ …
SBI Clerk Recruitment 2021 – Apply Online for 5121 Vacancy State Bank of India (SBI) has announced notification for the recruitment of Junior Associate (Customer Support & Sales) in Clerical Cadre (Regular & Backlog) vacancies. Those Candidates who are Interested …
Diatoms are [BHU 2000] (a) Fungi (b) Plantae (c) Protista (d) Protozoans Red oceanic tides can be due to [BHU 1986] (a) Diatoms (b) Dinophyceae (c) Red algae (d) Blue-green algae Some protists possess structures for regulation of …
Which group of organisms are devoid of cell wall in their vegetative stage but develop a wall in reproductive phase (a) Fungi (b) Blue–green algae (c) Slime mould (d) Archaebacteria Cell wall are well preserved as fossils in one of …
Characteristics of protista Protista (Protistos = Primary) includes unicellular eukaryotes and show the following characters : (1) Protists include solitary unicellular or colonial unicellular eukaryotic organisms which not form tissues. (2) The unicells may be naked or covered by …
Which of the following represents obligate anaerobes [CPMT 1991] (a) Spirogyra (b) Pisum sativum (c) Onion (d) Methane bacteria Which of the following is a photo–autotrophic bacterium (a) Rhodospirillum (b) Azospirillum (c) Nitrosomonas (d) Nitrobacter Rhizosphere bacteria are present around …
(a) Anaerobic breakdown of proteins is known as putrefaction. (a) The nuclear material of bacteria, consisting of naked DNA molecule, it is identified as nucleoid. (c) Glycocalyx is a loose gelatinous thin sheath called loose slime layer which is secreted …
In bacteria [AFMC 1982] (a) DNA is enclosed in nucleus (b) DNA is scattered (c) DNA is double stranded and ringed (d) None The chief component of bacterial cell wall is [MP PMT 1989] (a) Cellulose and chitin (b) Cellulose …