What was the assertion-reason question on meiosis in NEET 2026?
The correct answer for this meiosis NEET 2026 question is option C. Statement I claims chromosomes reach full condensation by the end of prophase I. Statement II claims meiosis I is similar to mitosis. The four choices were A) both true, B) both false, C) Statement I is correct but Statement II is false, and D) Statement I is incorrect but Statement II is true.
The question tested evaluation of two independent claims. Statement I focuses on the condensation timeline across the five sub-stages of prophase I. Statement II tests the fundamental nature of the division, not just the presence of similar-looking stages.
What does the official step-by-step solution say for this meiosis NEET 2026 question?
Statement I is true. Chromosomes condense progressively during prophase I and are fully condensed and clearly visible at its end. By diakinesis, the last part of prophase I, every bivalent appears as a compact structure with clear chiasmata.
Statement II is false. Meiosis I is reductional because homologous chromosomes separate. Mitosis is equational because sister chromatids separate. Meiosis II, not meiosis I, closely resembles mitosis.
A diploid cell starts with 2n = 4 chromosomes (two homologous pairs). In meiosis I the homologues separate, producing two cells that each contain n = 2 chromosomes. In mitosis the same starting cell would yield two daughter cells that each still have 4 chromosomes. The outcome, not the superficial appearance of spindles or condensed chromosomes, decides the division type.
Therefore Statement I is true and Statement II is false, so the answer is C.
Why do students select the wrong option when statements mix condensation with division type?
Treating the presence of condensation and spindle formation in meiosis I as sufficient reason to call it similar to mitosis leads students to mark both statements true. They see chromosomes shortening, the nuclear envelope breaking, and fibres attaching, then assume the processes match.
This error produces the choice that both statements are true. The correct method requires checking the division outcome (homologues versus sister chromatids) rather than superficial stage similarities. The official solution separates the timeline fact from the division-type fact and evaluates them one at a time.
Which related assertion-reason questions from Cell Structure and Function should you practise next?
Practice these two medium-difficulty statement-based items immediately after the meiosis NEET 2026 question.
First: Assertion: Crossing over occurs only in the pachytene sub-stage of prophase I. Reason: It never takes place during mitosis because homologous chromosomes do not pair. Decide the correct option using the same independent-check method.
Second: Assertion: Meiosis I converts a diploid cell to haploid cells. Reason: Meiosis II is equational and therefore identical to mitosis in its effect on chromosome number. Again evaluate each line separately before combining.
For another solved assertion-reason example from the same chapter, read the walkthrough at chromosomal disorders NEET 2026 both statements incorrect. These items repeat the same testing style: precise stage names, reductional-versus-equational contrast, and events unique to meiosis.
How do you finish any assertion-reason question in NEET biology in 45 seconds?
Read and verify each statement independently against NCERT facts before combining. For the meiosis NEET 2026 item the key checkpoints are the condensation timeline in prophase I and the reductional versus equational definition. Spend 15 seconds on each statement and 15 to match the option.
The biology section carries 90 questions and 360 marks. One accurate choice here equals four marks with almost no negative risk when you follow this sequence. When a similar item blocks you, photograph any question you are stuck on and get a step-by-step solution across Physics, Chemistry and Biology (20 free a month).
What exact distinctions must you remember for meiosis in NEET 2026?
Full condensation occurs at diakinesis end of prophase I. Meiosis I reduces chromosome number from diploid to haploid by separating homologues. Meiosis II maintains that haploid number by separating sister chromatids exactly as mitosis does.
The Cell Structure and Function chapter repeatedly tests these precise differences. Students who apply the independent-statement-evaluation method on similar questions from the past-paper archive can expect to select option C in under 45 seconds because the checkpoints on condensation timeline and reductional-versus-equational outcome become automatic. Search the past-paper archive by chapter to solve every previous meiosis NEET question with its official solution.
Next step: photograph a doubt on NEET JEEnius AI and photograph any question you are stuck on and get a step-by-step solution across Physics, Chemistry and Biology (20 free a month).
Frequently asked questions
What is the correct answer for meiosis NEET 2026 assertion reason question?
The correct answer is option C. Statement I is true because chromosomes reach full condensation by the end of prophase I in the diakinesis stage. Statement II is false because meiosis I is reductional, separating homologous chromosomes and halving the number, unlike mitosis which is equational.
Why is statement II false in the meiosis NEET 2026 question?
Statement II is false because meiosis I is not similar to mitosis. Meiosis I is reductional as homologous chromosomes separate, producing haploid cells from diploid ones. Mitosis keeps the chromosome number the same by separating sister chromatids. Only meiosis II resembles mitosis.
When do chromosomes reach full condensation in prophase I?
Chromosomes reach full condensation by the end of prophase I. This occurs in diakinesis where every bivalent appears as a compact structure with clear chiasmata. The meiosis NEET 2026 question tests this precise timeline from NCERT.
How do you solve assertion reason questions in NEET biology?
Read and verify each statement independently against NCERT facts before combining them. For the meiosis NEET 2026 item, check the condensation timeline for one statement and the reductional versus equational outcome for the other. This takes 45 seconds and reduces errors.