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Download SGBAU BSc 2019 Summer 6th Sem Botany Molecular Biology n Biotechnology Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) BSc 2019 Summer (Bachelor of Science) 6th Sem Botany Molecular Biology n Biotechnology Previous Question Paper

This post was last modified on 10 February 2020

This download link is referred from the post: SGBAU BSc Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university


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B.Sc. (Part-II) Semester—VI Examination

BOTANY

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(Molecular Biology and Biotechnology)

Time : Three Hours] [Maximum Marks : 80

Note :— (1) There are seven questions in all.

(2) Q.1 is compulsory and carries 8 marks.

(3) Q.2 to Q.7 carry equal marks.

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(4) Draw neat and well labelled diagrams wherever necessary.

  1. (A) Fill in the blanks :
    1. The backbone of DNA is made up of __ Bonds.
    2. The organelle involved in Protein synthesis is __ .
    3. Lac Z gene of Lac operon encodes ___ enzyme.
    4. GMO stands for __ .
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    (B) Choose the correct alternative (MCQ) :
    1. Phage DNA used by Hershey and Chase is radio labelled with :
      1. 35S
      2. 32P
      3. 14CO
      4. 3H
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    3. Gene as a unit of mutation terms as :
      1. Recon
      2. Muton
      3. Cistron
      4. Nucleotide
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    5. Gene Battery Model is given by :
      1. Jacob and Monad
      2. Crick
      3. Britton and Davidson
      4. Emil Fischer
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    7. For aseptic transfer of explant on nutrient medium needs :
      1. Incubator
      2. Centrifuge
      3. Oven
      4. Laminar Air flow
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    (C) Write answer in one sentence each :
    1. Define plasmid.
    2. Give the site of protein synthesis in the cytoplasm.
    3. Which is initiation codon ?
    4. What is Protoplast ?
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  3. Explain :
    1. Griffin's experiment.
    2. Ac-Ds system.
    3. Nucleosome model.
    OR
    1. Chemical composition of DNA.
    2. Replication fork.
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    4. Satellite DNA.
  4. Describe the different types of RNA. OR Describe transcription and m-RNA processing in Eukaryotes.
  5. Describe operon concept with special reference to Lac Operon. OR Describe Primary, Secondary, Tertiary and Quaternary structures of proteins.
  6. Explain :
    1. Ti plasmid.
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    3. Genomic DNA library
    4. Restriction endonucleases.
    OR
    1. Phages as cloning vector.
    2. cDNA Library.
    3. PCR.
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  7. Explain :
    1. Autoclave.
    2. Micropropagation
    3. Role of hormones in Tissue culture.
    OR
    1. Laminar Air flow.
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    3. Totipotency.
    4. Callus culture.
  8. Describe in brief :
    1. BT-cotton.
    2. Edible vaccines.
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    4. Protoplast culture.
    OR
    1. Somatic hybridization.
    2. Alcohol production by fermentation.
    3. Synthetic seeds.
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This download link is referred from the post: SGBAU BSc Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university

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