Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AIIMS2005BotanyCell Cycle and Cell Division

Primary source of allelic variation is

Options

  1. Aindependent assortment
  2. Brecombination
  3. Cmutation
  4. Dpolyploidy.

Correct answer

B. recombination

Step-by-step solution

Recombination is the natural process of breaking and rejoining DNA strands to produce new combination of genes and, thus, generate genetic variation. This is the phenomenon which occur during meiosis I.

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 AIIMS PYQs