Q30 / 180 · NEET 2020 (Phase 2) · Botany

Which of the following elements helps in maintaining the structure of ribosomes?

  • Correct answer
    A
    Magnesium
  • B
    Zinc
  • C
    Copper
  • D
    Molybdenum

Solution

Each ribosome is made up of two subunits - a large and a small subunit. A 70S ribosome is made up of 50S, large subunit and 30S, small subunit. An 80S ribosome is made up of 60S, large subunit and 40S, small subunit. 0.001 M Mg+2 concentration is required for the association of two subunits. As a result, the intact ribosome is formed.
 

Figure

Hence, the correct answer is option: 'A'.

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