BSc Biotechnology Sem I 2012 2014 2014 Paper L Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 (a) Name any two of the following
   • i. Carbon source of photolithoautotrophs ii | Medium that contains some ingredients of unknown chemical specific
   • iii. Shortest time needed to kill all organisms in a microbial temperature and under defined conditions. and
   • iv. Halogen used as skin antiseptic, which kills by oxidizing cell
2. Q1 (b) Fill in the blanks of any two of the following statements. ( i is needed for synthesis of substances like amino acids, cysteine and ii, An organism which is able to grow in presence of atmospheric oxygen is call Laminar air flow biological safety cabinets employ filters to remove 99.97%
   • iv. Formaldehyde is marketed in aqueous solution as
3. Q1 (c) Define any one of the following. (01)
4. Q1 (d) Give an account of any two of the following. 10 marks
   • i. Types of culture media it Conditions influencing the effectiveness of antimicrobial agents Any two methods used for isolation of microorganisms, Iv. Radiations as physical agents in controlling microorganisms,
5. Q2 (a) Define any five of the following. (0s)
6. Q10 Nonsense mutation
7. Q2 (b) Discuss any two of the | —
   • i. Laws of segregation with the help of monohybrid cross ii, | Two Methods used to determine the genotype of an individual iti. | Types of point mutation
8. Q3 (a) Give two examples each for any two of the following: 4 marks
   • i. Modified roots for storage of food iii, Species of li. Stem tuber iv. Species of Nostoc
9. Q3 (b) Define any one of the following. (01)
10. Q3 (c) Answer any two of the following. 10 marks
    • i. Comment on ‘the excretory materials’ in plants
    • ii. Discuss the different types of sub-aerial modification of roots in plants
    • iii. What are plastids? Add a note on its types
    • iv. Discuss the major groups of Archaebacteria
11. Q4 Write short notes on any three of the following. 15 marks
    • i. Asexual reproduction in fungi li. Types of permanent tissues ili. Heat as a physical agent for control of microorganisms
    • iv. Preservation methods of microorganisms
    • v. Symbols used in Mendelian genetics

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