Question

Cells of quiescent centre have lower concentration of

• A. DNA
• B. Proteins
• C. RNA
• D. All of the above

Answer 1

The correct option is D All of the above

• The quiescent centre is that part of the root-promeristems that contains the initials of epidermis, cortex and stele which divides less frequently and are present at the pole of cortex and stele.
  
• In closed meristems, QC is hemispherical in shape whereas, in open meristem it is disc-shaped.
• The cells with QC have small dictyosomes, nuclei and nucleoli.
• These cells also have little endoplasmic reticulum, mitochondria and contain low concentrations of RNA, DNA and protein than the other cells of the root apex.
• So, the correct answer is 'All of the above'.