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Botany - Principles and Processes of Biotechnology - Two Marks Study Materials

12th Standard

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Biology

Time : 00:45:00 Hrs
Total Marks : 30
    15 x 2 = 30
  1. How do you use the biotechnology in modern practice?

  2. What are the materials used to grow microorganism like Spirulina?

  3. You are working in a biotechnology lab with a becterium namely E.coli. How will you cut the nucleotide sequence? explain it.

  4. What are the enzymes you can used to cut terminal end and internal phospho di ester bond of nucleotide sequence?

  5. Name the chemicals used in gene transfer.

  6. Write about the modern biotechnology.

  7. Define fermentation.

  8. How microbial enzymes are produced? Mention its significance.

  9. What is Restriction Endonuclease?

  10. Differentiate between flush end and cohesive end of DNA.

  11. Name any four vectors that you know?

  12. Point out any two disadvantages of Bt cotton?

  13. Expand (i) PEG (ii) PHB

  14. Observe tbe given flow cbart and complete it.

  15. Golden rice is a bio-fortified rice developed by rDNA technology. It differs from its parental strain by possessing 'psy' gene, 'crt-l' gene and 'lyc' gene wbicb are responsible for beta - carotene syntbesis.
    (a) Name the sources of the above mentioned genes.
    (b) Which disease can be controlled / prevented if a person's diet bas golden rice?

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