Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2021BotanyCell Cycle and Cell DivisionActual

The centriole undergoes duplication during:

Options

  1. AS-phase
  2. BProphase
  3. CMetaphase
  4. DG 2 phase

Correct answer

A. S-phase

Step-by-step solution

Centrioles undergo duplication during the S phase of the interphase and begin to move towards the opposite pole of the cell during the prophase stage of mitosis. S phase is the period of DNA synthesis during which the cell replicates its genetic content ; a normal diploid somatic cell with a 2c complement of DNA at the beginning of the S phase acquires a 4c complement of DNA at its end.

Practice Cell Cycle and Cell Division on Quantrex Academy →

More from Cell Cycle and Cell Division

The correct sequence of adult cell cycle phases is __________. 2026Match List I with List II : List I (Phase of cell cycle) List II (Activity) A. G₁ phase I. Actual cell division occurs B. S phase II. Cell is metabolically active and continuously 2026Given below are two statements : Statement I : Chromosomes are fully condensed at the end of prophase I. Statement II : Meiosis I resembles mitosis. In the light of the above state 2026What is the main function of the spindle fibers during mitosis? 2025Match List-I with List-II. array |l|l|r|l| & array l List-I Event array & & array l List-II Stage of Prophase-I (Meiosis-I) array A. & Chiasmata formation & I. & Pachytene B. & Cro 2024Match List-I with List-II array |l|l|l|l| & List-I & & List-II A. & Cells are metabolically active and proliferate & I. & G ₂ phase B. & DNA replication takes place & II. & G ₁ pha 2024Recombination between homologous chromosomes is completed by the end of 2024Given below are two statements: Statement I : Chromosomes become gradually visible under light microscope during leptotene stage. Statement II : The beginning of diplotene stage is 2024 Full Cell Cycle and Cell Division list All NEET PYQs