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  • Question
  • A micro array is an ordered array of microscopic elements on a planer substrate that allows the specific binding of


  • Options
  • A. gene or gene products
  • B. whole genome
  • C. both (a) and (b)
  • D. none of these

  • Correct Answer
  • gene or gene products 


  • Biosensors and Biochips problems


    Search Results


    • 1. What is the size (in kb) of the tobacco chloroplast genome?

    • Options
    • A. 55 kilobase
    • B. 155 kilobase
    • C. 325 kilobase
    • D. 375 kilobase
    • Discuss
    • 2. Pollination is the process by which plants transfer male sex cells from one plant to another. How does the nucleus of the male cell reach the female cell?

    • Options
    • A. It travels on the legs of bees and sticks to the egg cell
    • B. The pollen grain grows a pollen tube and the nucleus travels down the pollen tube to reach the egg cell
    • C. It blows in the wind
    • D. None of the above
    • Discuss
    • 3. Single stranded circular RNA encapsidated with a larger RNA in a plant virus is

    • Options
    • A. a virion
    • B. a viroid
    • C. a virusoid
    • D. none of these
    • Discuss
    • 4. The inosine and hypoxanthine can be determined simultaneously by using

    • Options
    • A. inosine sensor
    • B. inosine and hypoxanthine sensor
    • C. amorphous silicon ISFET
    • D. urea sensor
    • Discuss
    • 5. Microarray analysis involves biological assays based on

    • Options
    • A. gels
    • B. filters
    • C. purification columns
    • D. small glass chips
    • Discuss
    • 6. To qualify as a micro array the analytical device must be

    • Options
    • A. ordered
    • B. microscopic
    • C. planer and specific
    • D. all of these
    • Discuss
    • 7. Biochips are made up of

    • Options
    • A. semi-conducting molecules inserted into the protein frame work
    • B. conducting molecules inserted into the protein frame work
    • C. non-conducting molecules inserted into the protein frame work
    • D. any of the above
    • Discuss
    • 8. Which of the modification in hemoglobin is the cause of sickle cell anemia?

    • Options
    • A. A mutation in the beta chain
    • B. A deletion in the beta chain
    • C. Replacement of the B chain by D chain
    • D. None of the above
    • Discuss
    • 9. Which of the protein is involved in Alzheimer's disease?

    • Options
    • A. A4
    • B. Amylin
    • C. Fibrin
    • D. Alzhemin
    • Discuss
    • 10. A deficiency of the enzyme Hypoxanthine Guanine phosphoribosyl transferase (HGPRT) may cause

    • Options
    • A. Gaucher's disease
    • B. Ehlers-Danlos syndrome
    • C. Lesch- Nyhan syndrome
    • D. Kleinefelter's syndrome
    • Discuss


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