C 204 T Principles of Electrical Communication - PEC Second Syllabus 2007 onwards

C 204 T Principles of Electrical Communication - PEC  Second Syllabus 2007 onwards
BSc Computer Science

Module 1 (6 hrs)
Signals:- Introduction To Signals- Analog And Digital- Periodic And A Periodic.
Different Types -Graphical Representation. Composite Signals- Frequency Spectrum -
Bandwidth- Simple Communication Model. Communication Blocks.

Module 2 (10 hrs)
Media:- Different Types- Guided And Unguided-Physical Description And Characteristics
Of Twisted Pair Cables,, Coaxial Cables And OFCs- Introduction To Signal Noise - White
Noise- Transmission Impairments- Channel Capacity- SNR - Noise Figure- Wireless
Transimission- Satellite Communication- IR Transmission,

Module3 (22 hrs)

Modulation and Demodulation:- Modulation-Introduction AM, FM, PM- DSB, SSB Vestigial Sideband Modulation – Analysis of AM, FM, PM Waves- Generation of AM Waves, Filter System- Phase Shift Method- Third Method- Generation Of FM- FM Methods- Direct Method- AFC- Indirect Method, Demodulators- AM and FM- AM Receivers- FM Receivers- Comparison of AM And FM.

Module 4 (16 hrs
Digital Communication:- Introduction- Sampling- Quantization- Companding- Nyquist
Criteria- Pulse Modulation- Digital Communications: - PCM, DPCM, DM, ADM, Concept
Of FDM And TDM.

Module 5 (10 hrs)
Digital Modulation Techniques: - Introduction To ASK, FSK, PSK, DEPSK, QPSK, MPSK, QASK, BFSK, BPSK, and MFSK.

Text Book

Elecronic Coiimuniction Systems , Kennedy And Davis
Principles of communication Systems , Taub And Schilling

References
Data & Computer Communications ,William Stallings
DataCommunication And Networking Bebrouz A Forouzan

C 204 T Principles of Electrical Communication PEC  Second semester Mahatma Gandhi MG University Syllabus 2007 onwards

mg previous year question papers

MICROBIOLOGY AND MICROBIAL BIOTECHNOLOGY MODEL QUESTION PAPERS

MODEL QUESTION PAPERS
C.B.C.S.S B.Sc BOTANY & BIOTECHNOLOGY ( Double Main)
MICROBIOLOGY AND MICROBIAL BIOTECHNOLOGY
SECTION A
Answer all questions
Weight one for each bunch of 4 questions

1. Triple vaccine for the prevention of viral infection protects against _________ ________ and _____________
2. State True /False. Mac Conkey agar prevents the growth of gram negative bacteria.
3. Give 2 examples of DNA virus.
4. Resolution of Electron Microscopy is __________
5. Give one example for photosynthetic bacteria.
6. Give the composition of Agar.
7. Give 2 examples for selective and differential media,
8. The condition where microbes are temporarily unable to grow, at least under laboratory conditions are

     called __________
9. During pasteurization milk is heated to ______________degree Celsius for _________minutes.
10. The phase in which primary products of metabolism are produced is known as __________ phase.
11. Give two examples of primary metabolites.
12. Name any two culture collection centers.
13. Name the fermenter which can be used for continous culture.
14. Chemical nucleus of penicillin is _________________
15. Give example for a mixotrophic bacteria.
16. The mode of horizontal gene transfer mediated by viruses is known as __________

SECTION B
Answer any Five only
Carries weight of one each

17. Describe Air lift Fermenter.
18. Define Microbial inhibition spectrum
19. What are antifoam ? Give any four properties for an ideal antifoam.
20. Define Lysogeny Lysogen , Temperate Phages , Virulent Phages.
21. Define Growth. Describe the four phases of growth curve in a closed culture system.

22. Define sterilization. Give the various methods of physical and chemical sterilization.
23. Describe the principle of Phase contrast microscopy.
24. What are Koch’s postulate.

SECTION C
Answer any four
Carries weight of 2 each

25.Calculate the mean growth rate and generation time of a culture that increases in exponential

      phase from 5x 10² to lx 10⁸ in 12 hours.
26.Discuss the culturing of viruses in laboratory.
27.Describe Screening with reference to a suitable example.
28.Define fermentation. Give 2 microbial enzymes and their role in industrial process.
29.Differentjate between gram positive and gram negative bacteria.
30.Describe briefly the classification of culture media with examples.

SECTION D
Answer any two
Carries weight of 4 each

31. Describe in detail the production of Industrial Ethanol.
32. Discuss the ways in which micro organism are classified based on their  requirements for

       energy, carbon, and electron with examples.
33. Describe lytic and lysogenic viral reproduction cycles. With suitable diagrams.

ANATOMY AND REPRODUCTIVE BOTANY OF ANGIOSPERMS MODEL QUESTION PAPERS

MODEL QUESTION PAPERS
DEPARTMENT OF BOTANY AND BIOTECHNOLOGY

C.B.C.S.S. B.Sc. DEGREE MODEL EXAMINATION

Semester Ill                             Course 3                                  Botany

Core course - ANATOMY AND REPRODUCTIVE BOTANY OF ANGIOSPERMS

Time : Three Hours                                                                                         Total Weight : 25

Part A
(Objective type — weight 1 each for a bunch)
Answer all questions

1. Apical cell theory was proposed by
            a) Schimdt       b) Hanstein      c) Nageli          d) Schuepp
2. Commercial cork is formed by the deposition of
            a) Cutin           b) Suberin        c) Cellulose     d) Lignin
3. The cortex from stele is delimited by
            a) Epidermis    b) Hypodermis             c) Endodermis            d) Pericycle
4. The nature of primary endosperm nucleus is
            a) Monoploid                          b) Diploid        c) Triploid                   d) Polyploid

Match the following

5. Nuclear endosperm             -  Cork
6. Phellum                               -  Coconut
7. Polyembryony                     -  Cork cambium
8. Phellogen                            -  Citrus

State True or False

9. Mesarch xylem is commonly found in ferns.
10. Vascular cambium in stem is both primary and secondary in origin.
11. Complex tissue is homogenous in origin.
12. Formation of embryo from an unfertilized egg is called apogamy.

Fill in the blanks

13. Casparian strips are characteristic feature of  …………………
14. The vessels with ladder like thickenings on their wall are …………………
15. The bundles of Calcium oxalate crystals are called ………………
16. Double fertilization was discovered by …………………..

Turn over

Part B

(Short answer questions — weight 1 each)

Answer any five of the following

17. Define dendrochronology.
18. What are bulliform cells?
19. The central part of the stem is dark in colour. Why?
20. How do you differentiate a monocot root from  a dicot  root?
21. What are laticifers?
22. What are lenticels?
23. What is tapetum ? What are its types?
24. Differentiate between dicliny and dichogamy.

Part C
(Short essay questions — weight 2 each)

Answer any four of the following

25. Describe different types of stomata in dicots.
26. What is wood ? Differentiate between hard wood and soft wood.
27. Describe different types of vascular bundles.
28. Explain Tunica-corpus theory.
29. Describe different types of embryosacs.
30. Write short notes on physiology and biochemistry of sexual incompatibility.

PartD
(Essay type questions — weight 4 each)

Answer any two of the following

31. Describe the normal secondary growth found in dicot stems.
32. Classify meristems explaining their role, origin and activity.
33. Describe the secondary growth in Dracaena stem.
34. Describe apomixis and its different types.

Old Question papers , Previous Year Question Papers ,

PLANT BIOTECHNOLOGY B.Sc. Botany and Biotechnology (Double Main)

E 730                                          (Pages: 3)                                        Reg. No . ............................................................
Name...........................

B.Sc. DEGREE (CBCSS) EXAMINATION, NOVEMBER 2010
Third Semester
B.Sc. Botany and Biotechnology (Double Main)
Core Course—PLANT BIOTECHNOLOGY

Time: Three Hours                                                                             Maximum Weight : 25
Part A
Answer all questions.
1 Weight for each bunch of four.

Bunch I

1. The chemical used for protoplast fusion:

        (a) Polyphenylglyceroi         (b) Polyacetylene glysal.

        c) Polyethylene glycal.         (d) Polyethylene chloride.

2. The aim of anther and pollen culture is to:

        a) Produce haploid plants.         (b) Produce diploid plants.

         (c) Produce mutants.                  (d) Produce disease resistant plants.

3. Undifferentiated mass of dividing cells in a tissue culture is called:

         (a) Embryoid.                  (b) Callus.

         (c) Shield.                 (d) Aggregate

4. Electrophoration is a technique used with:

         (a) Calluses.                 (b) Pollen.

        c) Protoplasts.                 (d) Cell suspension.

Bunch II

5. Cell suspension cultures require:

         (a) Organogenesis.         (b) Differentiation

         (c) Aggregation.         (d) Disaggregation

6. The plant resulting from the fusion of two different protoplasts is called:

         (a) Protoplasmic hybrid.        (b) Somatic hybrid.

         (c) Monohybrid.                  (d) Dihybrid.

Turn over

           2                                                                           E730

7. The fastest way to a ripe tomato using tissue culture is by:

         (a) Anther pollenculture         (b) Plant organ culture.

         (c) Protoplast culture         (d) Callus culture

8. Chemical used for surface sterilization of plant material in tissue culture:

         (a) Ethylacetate                 (b) Calcium carbonate

        c) Mercuric chloride         (d) Sodium hydroxide

Bunch III

9. Agrochemical obtained from plant:

        a) Pyrethrin

         (b) Benzedene.

10. A plant useful in the study of plant genomes because of its small genome size is:

         (a) Avena sativa.         (b) Petunia porodii

         (c) Pisum sativum         (d) Arabidopsis thaliana

11. Most plant tissue cultures are initiated from:

         (a) Calluses.         (b) Explants.

         (c) Plantlets         (d) Protoplast

12. When the cell wall is enzymatically removed, the isolated protoplast is known as?

        a) Naked plant cell.         (b) Explant.

         (c) Callus.         (d) Plantlet

Bunch IV

13. Which of the following is not a method of somatic hybridjzaj0?

         (a) Isolation of protoplasts         (b) Fusion of nuclei of hetero karyon.

         (c) Selection of hybrid.        d) Lyophilization

14. The genetic engineering of crop plants can me them healthier and more beneficial to humans:

         (a) True.

         (b) False.

15. Cybrid is formed by the:

         (a) Fusion of two protoplasts

         (b)Fusion of cytoplasm of two cells but with one nucleus.

         (c) Nucleic acid from different source.

         (d) Fusion of nuclei.

16. In merjstem culture, all the plants are genetically identical to the plant from         

        which the meristem was obtained:

         (a) True.

         (b) False.

(4 x 1 4)

3 E730

Part B

Answer any five questions.
Weight 1 each.

Write short notes on:

        17. Suspension culture.

        18. Direct organogenesis.

        19. Hardening.

        20. Synthetic seed.

        24 Cell immobilization.

        22. Gene cloning.

        23. WTO.

        24. Allergenecity.

(5 x 1 = 5)

Part C

Answer any four questions.

Weight 2 each.

25. What is an explant?

26 . What is a callus?

27. What is the significance of somaclonal variations?

28. What is indirect androgenesis?

29. Explain the benefits of transgenics to human health.

30. What are biocolours ? Give examples.

(4 x 2 = 8)

PartD

Answer any two questions.

Weight 4 each.

31. Explain Agrobacterium mediated gene transfer.

32. Write an essay on the implications of intellectual property rights on the

        commercialization of biotechnology products.

33. Describe in vitro production of secondary metafolites.

(2 x 4 = 8)