Biology objective questions (Advanced Level) | Quiz: Biology General Knowledge Questions

1 >>The process of elimination of profitable birds from a flock is called ?

(A) brooding
(B) dubbing
(C) culling
(D) deworming

2 >>In India which of the following species of honey bee is reared in artificial hives ? ?

(A) Apis indica
(B) Apis dorsata
(C) Apis florae
(D) none of these

3 >>Which of the following statements about bee colony is wrong ? ?

(A) Domesticated species are A. indica and A. mellifera
(B) Sex differentiation is due to haplodiploidy
(C) They are female dominant societies
(D) Fertilized eggs develop into sterile females only

4 >>Coccidiosis in poultry is caused by ?

(A) protozoan parasite, Eimeria
(B) helminth parasites
(C) virus
(D) fungi

5 >>Which one of the following acids was produced by fermentation ? ?

(A) Citric acid
(B) Lactic acid
(C) Acetic acid
(D) All above

6 >>Vitamin B12 is produced directly during the course of fermentation by ?

(A) Ashbya Gossypi
(B) Rhizopus stolonifer
(C) Saccharomyces cerevisiae
(D) Propionibacteria

7 >>Antibiotics inhibit the growth or destroy ?

(A) bacteria and fungi
(B) viruses
(C) bacteria and viruses
(D) all of the above

8 >>Biopesticides are ?

(A) the chemicals which are used to destroy the pests
(B) the living organisms or their products which are used for the pest control
(C) the organisms which destroy the crops
(D) none of these

9 >>Vesicular arbuscular mycorrhizae (VAM) are important in ?

(A) nitrate uptake
(B) phosphate uptake
(C) both above
(D) sulphate uptake

10 >>Blue green algae are mainly used as biofertilizers in the field of which crop ? ?

(A) Wheat
(B) Gram
(C) Paddy
(D) Maize

11 >>Most commonly used green manure plants are ?

(A) berseem, cotton and sunn hemp
(B) lentil, sunn hemp and berseem
(C) sunflower, cotton and sugarcane
(D) cowpea, cluster bean and teak leaves

12 >>Advantage of energy plantations is ?

(A) running nuclear plants
(B) to reduce pressure on fossil fuels
(C) to decrease soil erosion and pollution
(D) both b and c

13 >>The herbicide mixture rich in 2,4-D and 2,4,5-T with TCDD being carcinogenic and teratogenic used by Americans in Vietnam war in 1961-71 was ?

(A) agent organge
(B) triazines
(C) organophosphates
(D) pyrethroids

14 >>Fruitflies have been controlled by ?

(A) sterilization
(B) pheromonal compounds as synthetic methyl eugenol
(C) cultural control
(D) all above

15 >>Restriction enzyme was discovered by ?

(A) Waksman
(B) Alexander Flamming
(C) Berg
(D) A.Werner, H.Smith and Nathans

16 >>Cider is prepared by ?

(A) action of Lactobacillus on milk
(B) action of Saccharomyces on apple juice
(C) action of saccharomyces on cane sugar
(D) action of Bacillus on ramie

17 >>Which of the following is non-symbolic biofertilizers ? ?

(A) VAM
(B) Azotobacter
(C) Anabaena
(D) Rhizobium

18 >>Azadirachtin is obtained from ?

(A) neem
(B) Cinchona
(C) Cannabis sativa
(D) Chrysanthemum

19 >>One of the following plants have contributed to coal formation ?

(A) angiosperms
(B) pterdophytes and gymnosperms
(C) bacteria
(D) archaeobacteria

20 >>One important achievement of genetic engineering has been the production of ?

(A) interferon
(B) human insulin
(C) cephalosporin
(D) vinoblastine

21 >>Recombinant DNA research uses mostly prokaryotic bacteria and eukaryotic ��.. as recipient cells because of their fast reproduction in laboratory conditions ?

(A) E-coli
(B) Drosophila
(C) yeasts
(D) fungal hyphae

22 >>Polylinker DNA is one which ?

(A) do not code for any protein
(B) has restriction sites for several enzymes
(C) is used for DNA transfer
(D) is seen in single stranded DNA only

23 >>Rec A protein moves in ?

(A) 3′ - 5′ direction
(B) bidirectional
(C) 5′ - 3′ direction in DNA
(D) 3′ - 5′ direction in RNA

24 >>Who discovered PCR (polymerase chain reaction) ? ?

(A) Wilmut
(B) A. Jeffreys
(C) Eithoven
(D) Kary Mullis

25 >>If it is now possible to breed plants and animals with desired character through ?

(A) genetic engineering
(B) chromosome engineering
(C) ikebana technique
(D) tissue culture

26 >>The region of gene which do not form part of protein synthesis are called ?

(A) exons
(B) introns
(C) transposons
(D) cistrons

27 >>Production of hybridoma is a example of ?

(A) transgensis
(B) cell cloning
(C) gene cloning
(D) none of these

28 >>The plasmid with largest base pairs are ?

(A) ? Phage
(B) bacteriophage
(C) P elements
(D) YAC

29 >>Plasmids are the suitable vectors for genetic cloning as ?

(A) they are indispensable
(B) they are self replicating units
(C) they are essential for bacterial reproduction
(D) none above

30 >>Which of the following is used in genetic engineering ? ?

(A) Restriction endonuclease
(B) Mycobacterium
(C) Entamoeba
(D) Pepsin

31 >>The bacteria commonly used in plant genetic engineering is ?

(A) Escherichia coli
(B) Agrobacterium tumefaciens
(C) both above
(D) none above

32 >>Which is the most common plasmid used for most of genetically engineered products ? ?

(A) pBR322
(B) R plasmid types
(C) CaMV19S
(D) both a and b

33 >>The method of producing proteins for food or feed through microbial biomass is called ?

(A) PCR
(B) SCP
(C) nanotechnology
(D) none of theses

34 >>The transgenic animals have been created to model human diseases. One of such example is ?

(A) humanized (humanoid) mice for AIDS research having human CD4 gene
(B) Ducomouse
(C) models for immune function to cure diabetes of auto immune diseases
(D) all above

35 >>The foods made from genetically modified crops required to pass human testing because ?

(A) they may cause allergies
(B) they may alter genes
(C) they may casue mutations and release toxins
(D) all above

36 >>Vaccine is ?

(A) collection of antibiotics
(B) collection of life saving drugs
(C) collection of killed disease causing bacteria and viruses
(D) collection lysins

37 >>The largest ecosystem in the world is contributed by ?

(A) forests
(B) rivers
(C) oceans
(D) grasslands

38 >>An aquatic ecosystem consists of ?

(A) biotic factors
(B) biotic and abiotic fators
(C) consumers only
(D) producers only

39 >>Geotropism is an example of plant adaptation. ?

(A) long term
(B) short term
(C) heat adaptation amongst
(D) changes of light in

40 >>No two different species can occupy the same niche. This principle was given by ?

(A) Elton
(B) Lindeman
(C) Shelford
(D) Gause

41 >>The soil near the surface is usually darker than about one meter down, this is because the top soil ?

(A) is richer in Ca and Mg
(B) contains more organic matter
(C) is wetter than the sub soil
(D) is drier than the sub soil

42 >>Severe winters with few months of summer are found in ?

(A) Tundra
(B) Arctic
(C) Taiga
(D) Antartic

43 >>Bottom dwellers where no light occurs is found in ?

(A) benthic zone
(B) abyssal zone
(C) pelagic zone
(D) lotic zone

44 >>Pick up the correct statement ?

(A) Home range of members of a species has larger area than that of territory
(B) Many insects mainly honey bees communicate among themselves by secreting pheromones
(C) The last succession in series of biotic succession is called a sere
(D) Number of individuals of particular species present in a unit area at a given time is known as population size

45 >>The degree of gene flow that takes placed depends on ?

(A) the size of the gaps that separate the population
(B) the distance over which mating usually takes place
(C) both above
(D) none above

46 >>The isolated populations where genetic drift is more pronounced are ?

(A) large populations
(B) only plant populations
(C) only viral populations
(D) small populations

47 >>Large gap between natality and mortality will result in ?

(A) less old persons in relation to children
(B) more old persons
(C) low dependency ration
(D) prosperous Country

48 >>The age distribution of a population is determined by the ?

(A) timing of births and deaths
(B) the rate at which population is growing
(C) both above
(D) none above

49 >>Density-dependent population regulation results when ?

(A) only birth rate changes in response to density
(B) only death rate changes in response to density
(C) both above change
(D) population density fluctuates very little

50 >>One of the following developing country shows highest death rate due to natural calamities ?

(A) India
(B) Bangladesh
(C) Pakistan
(D) Nepal

51 >>If the strong partner is benefited and the weak partner is damaged, the relationship is known as ?

(A) ammensalism
(B) symbiosis
(C) commensalism
(D) allotrphy

52 >>A population has more than 50% in postreproductive age group ; according to you such population is ?

(A) stable
(B) declining
(C) inreasing
(D) showing biotic potential

53 >>Elephants, man and mountain sheep ?

(A) show more biotic potential
(B) are called r-strategists
(C) are called K-strategists
(D) all above

54 >>Hydoxylamine toxins are released by ?

(A) all parasites
(B) members of actinomycetes
(C) blue green algae
(D) all above

55 >>Genetic drift operates in only __ Populations ?

(A) island
(B) smaller
(C) larger
(D) Mendelian

56 >>A new species can be developed by ?

(A) mutation and isolation
(B) isolation and competition
(C) mutation and competition
(D) variation and competition

57 >>The major sub-divisions of biosphere are ?

(A) soil, water and hydrosphere
(B) soil, atmosphere and lithosphere
(C) atmosphere, lithosphere and hydrosphere
(D) atmosphere, lithosphere and air

58 >>The lowest temperature recorded for any land mass in the world is ?

(A) -70 C(Deg)
(B) -90 C(Deg)
(C) -40 C(Deg)
(D) -100 C(Deg)

59 >>The type of food chain in which organic matter decomposed is converted into energy rich compounds is called ?

(A) detritus and chain
(B) grazing food chain
(C) cybernatics
(D) none above

60 >>The last organisms of the food chain are generally ?

(A) photosynthetic plants
(B) herbivores
(C) carnivores
(D) none of the above

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Biology objective questions (Advanced Level) | Quiz: Biology General Knowledge Questions