Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice

When the number of chromosomes is already reduced to half in the first reduction division of meiosis. What is the necessity of the second mitotic division?

Options

  1. AThe division is required for the formation of four gametes.
  2. BThe division ensures equal distribution of genes on the chromosomes.
  3. CThe division ensures equal distribution of haploid chromosomes.
  4. DThe division is required for segregation of replicated chromosomes.

Correct answer

D. The division is required for segregation of replicated chromosomes.

Step-by-step solution

There are two stages in the meiotic division, meiosis I and meiosis II. These stages mainly involve the reductional and equational division of the cells. In the first meiotic division, the chromosome number is reduced to half (haploid condition) and the chromatids move to the opposite poles. In the second meiotic division which resembles normal mitosis, there is the formation of four gametes and the chromosomes are distributed to each gamete, therefore the second meiotic division is required for the segregation of

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 NTA Abhyas NEET PYQs