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Home Biotechnology Disorders See What Others Are Saying!
  • Question
  • 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

  • Correct Answer
  • Lesch- Nyhan syndrome 


  • More questions

    • 1. If starch containing substrates are used for ethanol production, yeast strain can't be used directly because

    • Options
    • A. it doesn't contain amylases to hydrolyze starch
    • B. starch is not a suitable substrate for the production of ethanol
    • C. it is converted to pentose sugar
    • D. none of the above
    • Discuss
    • 2. Which tropical fruit crop has been successfully engineered to be protected against a lethal virus?

    • Options
    • A. Passion fruit
    • B. Papaya
    • C. Mango
    • D. Lychee
    • Discuss
    • 3. What are different substrates used for ethanol production?

    • Options
    • A. Starch containing substrate
    • B. Juices from sugarcane or molasses or sugar beet
    • C. Waste product from wood or processed wood
    • D. All of the above
    • Discuss
    • 4. Which of the following transposable elements are not found in plants?

    • Options
    • A. Ac
    • B. Tam3
    • C. L1
    • D. All are found
    • Discuss
    • 5. The G0 phase is

    • Options
    • A. a permanent state of all body cells
    • B. the state of most cells in an animal body
    • C. another name for interphase
    • D. all of the above
    • Discuss
    • 6. The cell cycle is controlled in most cells by

    • Options
    • A. time (after a certain length of time the cell divides)
    • B. a series of checkpoints
    • C. cell size (when the cell reaches a certain size, it divides)
    • D. different cells exhibit different control strategies
    • Discuss
    • 7. Sequences that correctly describes the cell cycle is

    • Options
    • A. -> G1-> G2 -> S -> mitosis -> cytokinesis ->
    • B. -> S -> G2 -> mitosis -> cytokinesis -> G1 ->
    • C. -> G1 ->S -> G2 -> cytokinesis -> mitosis ->
    • D. ->cytokinesis-> mitosis -> G1 -> S -> G2 ->
    • Discuss
    • 8. Cells which no longer divide (such as certain specialized cells found in the human brain) remain in which phase of the cell cycle?

    • Options
    • A. Prophase
    • B. S phase
    • C. G0 Phase
    • D. Gl Phase
    • Discuss
    • 9. A cross shaped (+) or a ring involving four chromosomes may be formed during metaphase I in case of

    • Options
    • A. translocation heterozygote
    • B. deficiency
    • C. haploid organism
    • D. duplication
    • Discuss
    • 10. Which of the following is correct when a character shows continuous variation assuming a normal distribution?

    • Options
    • A. It is governed by many genes with small cumulative effect
    • B. It is not controlled genetically
    • C. Many of the variation is due to fluctuation of climate
    • D. None of the above
    • Discuss


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