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Home Biotechnology Nitrogen Fixation and Photosynthesis See What Others Are Saying!
  • Question
  • What is the metal ligand in chlorophylls?


  • Options
  • A. Copper (Cu)
  • B. Iron (Fe)
  • C. Magnesium (Mg)
  • D. Manganese (Mn)

  • Correct Answer
  • Magnesium (Mg) 


  • More questions

    • 1. At the __________ checkpoint, cell growth is controlled.

    • Options
    • A. C
    • B. G1
    • C. G2
    • D. S
    • Discuss
    • 2. Commercial sugarcane is heterozygons with germplasm from

    • Options
    • A. 1-3 Saccharum species
    • B. 3-5 Saccharum species
    • C. 5-7 Saccharum species
    • D. 7-9 Saccharum species
    • Discuss
    • 3. A short molecule containing 2-20 nucleotide is

    • Options
    • A. plasmid
    • B. vector
    • C. oligonucleotide
    • D. mononucleotide
    • Discuss
    • 4. Which of the following is the primary growth phase of a cell?

    • Options
    • A. G1
    • B. G2
    • C. M
    • D. G0
    • Discuss
    • 5. Yeast is used in the production of

    • Options
    • A. ethyl alcohol
    • B. acetic acid
    • C. cheese
    • D. curd
    • Discuss
    • 6. The combination of DNA and protein in the nucleus of a eukaryotic cell is called:

    • Options
    • A. nucleoplasm
    • B. plasmids
    • C. nucleoids
    • D. chromatin
    • Discuss
    • 7. In human B cells and T cells are matured in the

    • Options
    • A. bone marrow and thymus respectively
    • B. lymph nodes and spleen respectively
    • C. bursa and thymus respectively
    • D. none of these
    • Discuss
    • 8. Maximum size of foreign DNA that can be inserted into an insertion vector is

    • Options
    • A. 35 kb
    • B. 18 kb
    • C. 50 kb
    • D. 27 kb
    • Discuss
    • 9. In the bundle sheath of C4 plant __________ is/ are less than mesophyll.

    • Options
    • A. PSI
    • B. PSII
    • C. PSI or PSII
    • D. PSI and PSII
    • Discuss
    • 10. 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


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