Question:medium

The DNA present in chloroplast is:

Updated On: Mar 19, 2026
  • Linear, double stranded
  • Circular, double stranded
  • Linear, single stranded
  • Circular, single stranded
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The Correct Option is B

Solution and Explanation

Chloroplasts, organelles in plant and algal cells, execute photosynthesis. This process transforms light energy into glucose, a chemical energy store. Like mitochondria, chloroplasts possess independent genetic material, separate from nuclear DNA.

Chloroplast DNA exhibits specific traits:

  • Circular Form: This DNA lacks free ends, forming an unbroken loop. Such a structure mirrors bacterial DNA, supporting the endosymbiotic hypothesis of chloroplast origin from ancient bacteria.
  • Double Stranded: Chloroplast DNA adopts a double-helix configuration with two complementary strands, a common and efficient format for genetic information storage across organisms.

Considering these features, the description of chloroplast DNA is accurately identified as: Circular, double stranded

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