mbse.edu.in State Technical Entrance Exam Biology Question Paper : Mizoram Board of School Education
Organisation : Mizoram Board of School Education
Document Type : Question Paper
Exam : State Technical Entrance Examination
Subject : Biology
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State Technical Entrance Examination Question Papers Biology :
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MBSE State Technical Entrance Examination Question Papers
Biology (SET-A)
1. Natural genetic engineer is
(A) Pseudomonas putida
(B) Agrobacterium tumefaciens
(C) Escherichia coli
(D) Bacillus thuringiensis
Related : Mizoram Board of School Education Chemistry Question Paper State Technical Entrance Exam : www.pdfquestion.in/7305.html
2. Trypsin, Chymotrypsin, Carboxypeptidase are
(A) Nucleases
(B) Carbohydrases
(C) Lipids
(D) Proteases
3. Which of the following air pollutant is not a primary pollutant ?
(A) Carbon monoxide
(B) Peroxyacetyl nitrate
(C) Nitrogen oxides
(D) Hydrocarbons
4. The region of chloroplast where enzymes for dark reaction are located is
(A) Membrane of thylakoid
(B) Grana
(C) Stroma
(D) Lamellae
5. ‘Saheli’ an oral contraceptive for female contains a non-steroidal preparation called
(A) DMPA
(B) interferon
(C) centchroman
(D) retrovirus
6. How many male gametes are formed in pollen tube of angiosperms ?
(A) One
(B) Two
(C) Three
(D) Four
7. Organisms which are unable to maintain their body at constant temperature are known as
(A) homoiothermic
(B) poikilothermic
(C) endothermic
(D) eurythermal
8. Primitive anaerobic organisms that depended upon organic molecules of broth or hot dilute soup were
(A) autotrophs
(B) chemoheterotrophs
(C) photoautotrophs
(D) heterotrophs
9. Which of the following acts as Microtubule Organizing Centres (MTOC’s) during formation of spindle fibres ?
(A) Microfilaments
(B) Centrioles
(C) Centromere
(D) Cillium
10. The technique by which the semen collected from the husband or donor is artificially introduced into either the vagina or uterus is called
(A) ICSI
(B) IUI
(C) GIFT
(D) IVF
11. Net Primary Productivity refers to the
(A) total organic matter produced including those used for respiration
(B) balance energy or biomass remaining after meeting the cost of respiration of producers
(C) energy accumulated by plants during photosynthesis
(D) amount of biomass produced by plants per unit area
12. Ginger reproduces vegetatively by
(A) tubers
(B) corms
(C) bulbs
(D) rhizome
13. During relaxation of the muscles Ca++ is pumped
(A) back into the sarcoplasmic reticulum
(B) out of the sarcoplasmic reticulum
(C) back into the sarcomere
(D) out of the sarcomere
14. Transfer of DNA bands from Agarose gel to nitrocellulose membrane is known as
(A) Southern blotting
(B) Western blotting
(C) Northern blotting
(D) Eastern blotting
15. Severe combined immunodeficiency (SCID) results from the absence of
(A) B-cells
(B) T-cells
(C) macrophages
(D) both (A) & (B)
16. Dumb-bell shaped guard cells are seen in
(A) rose
(B) rice
(C) apple
(D) mango
17. The cyanobacterium Anabaena azollae lives in association with
(A) roots of Mangifera indica
(B) leaves of a floating fern
(C) roots of pine trees
(D) bacteria and fungi
18. If DNA has 10 spirals, the length of DNA will be
(A) 34 Ao
(B) 64 Ao
(C) 340 Ao
(D) 640 Ao
19. The daughter chromatids are pulled towards the opposite sides by shortening the spindle fibres during
(A) Prophase
(B) Metaphase
(C) Telophase
(D) Anaphase
20. Long-day plants do not flower when
(A) light period exceeds a certain critical length of the day
(B) short night is interrupted by flashes of light
(C) a long day is interrupted by brief dark period
(D) a short day is followed by a long night
21. Chiropterophily is pollination by
(A) insects
(B) bats
(C) animals
(D) birds
22. The site within the nucleus where ribosomal RNA is synthesised is
(A) Euchromatin
(B) Nucleoplasm
(C) Nuclear pore
(D) Nucleolus
23. Which of the following two codons have a double function ?
(A) AUG, GUG
(B) UAA, UGA
(C) UGA, GUG
(D) UAA, AUG
24. Taenia solium belongs to the Phylum
(A) Platyhelminthes
(B) Aschelminthes
(C) Annelida
(D) Echinodermata
25. The female genital pore of earthworm is present on the
(A) 18th segment
(B) 14th segment
(C ) 6th segment
(D) 5th segment
26. Number of gamete types produced by genotype AaBbCcDd will be
(A) 4
(B) 8
(C) 16
(D) 32
27. Teratogenicity is
(A) malformation of foetus
(B) induced parthenocarpy
(C) tumour forming action of the drugs
(D) chronic dependence on alcohol
28. Pisum sativum belongs to the family
(A) Solanaceae
(B) Liliaceae
(C) Fabaceae
(D) Malvaceae
29. In buffer zone of a biosphere reserve
(A) large number of human activities are permitted
(B) no human activity is permitted
(C) limited human activities are permitted
(D) active cooperation between reserve management and local people is permitted
30. The lubricant present in joints, that reduces friction during movement is
(A) ligament
(B) tendon
(C) synovial fluid
(D) glenoid fossa
31. In gel electrophoresis, differential mobility of DNA depends upon
(A) helical nature of DNA
(B) double stranded nature of DNA
(C) charge and size of DNA
(D) hydrogen bonding between bases
32. Fowl pox is caused by
(A) ectoparasites
(B) endoparasites
(C) bacteria
(D) virus
33. In birds, the heart is
(A) two chambered
(B) four chambered
(C) three chambered with two auricles and one ventricle
(D) three chambered with one auricle and two ventricles
34. Phenotypic and genotypic ratio of 1 : 2 : 1 in F2 generation is found in
(A) Neurospora crassa
(B) Lathyrus odoratus
(C) Pisum sativum
(D) Mirabilis jalapa
35. Chlamydia trachomatis causes
(A) trachoma
(B) urethritis
(C) STD
(D) all of these
36. In non-cyclic photophosphorylation
(A) only photosystem I is involved
(B) both photosystem I and photosystem II are involved
(C) only photosystem II is involved
(D) neither photosystem I nor photosystem II is involved
37. The different regions of a root are as shown below
The correct labelling of 1, 2, 3, 4 and 5 is
(A) 1- root cap, 2 – region of meristematic activity, 3 – region of maturation, 4 – region of elongation, 5 – root hair
(B) 1 – root cap, 2 – region of maturation, 3 – region of meristematic activity, 4 – region of elongation, 5 – root hair
(C) 1 – root cap, 2 – region of elongation, 3 – region of meristematic activity, 4 – region of maturation, 5 – root hair
(D) 1 – root cap, 2 – region of meristematic activity, 3 – region of elongation, 4 – region of maturation, 5 – root hair
38. Empty circle symbols used in pedigree analysis represents
(A) normal females
(B) normal males
(C) affected females
(D) affected males
39. A drug morphine is extracted from
(A) Cinchona ledgeriana
(B) Taxus baccata
(C) Papaver somniferum
(D) Lantana camara
40. Plasmids are used as vectors in genetic engineering because of their
(A) resistance to antibiotics
(B) resistance to restriction endonucleases
(C) ability to carry foreign genes
(D) ability to shuttle between prokaryotic and eukaryotic cell