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A plant has number of chromosome groups arranged at equatorial plane of metaphase-I whose 2n = 50; the number of chromosomes visible will be:
- a)100
- b)25
- c)50
- d)75
Correct answer is option 'C'. Can you explain this answer?
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A plant has number of chromosome groups arranged at equatorial plane o...
Number of Chromosome Groups
- The plant has a number of chromosome groups arranged at the equatorial plane of metaphase-I.
- It is given that 2n = 50, where 2n represents the diploid number of chromosomes.
- The diploid number of chromosomes is the total number of chromosomes in a cell, which includes both sets of chromosomes (one set from each parent).
- In this case, the diploid number is 50.
Determination of Visible Chromosomes
- During metaphase-I of meiosis, the chromosomes condense and align at the equatorial plane.
- At this stage, the chromosomes are visible and can be observed under a microscope.
- Each chromosome consists of two chromatids, which are identical copies of each other joined by a centromere.
- The chromatids separate during anaphase-I, resulting in haploid daughter cells with half the number of chromosomes.
- Since the diploid number is 50, there are 25 pairs of homologous chromosomes in the cell.
Calculation of Visible Chromosomes
- In metaphase-I, the homologous chromosomes align at the equatorial plane in pairs.
- Each pair of homologous chromosomes is counted as a single chromosome.
- Therefore, the number of visible chromosomes in metaphase-I is equal to the number of homologous chromosome pairs.
- As there are 25 pairs of homologous chromosomes, the number of visible chromosomes is 25.
Answer
- The correct answer is option C) 50.
- In metaphase-I of meiosis in this plant, there are 50 visible chromosomes arranged at the equatorial plane.
- The plant has a number of chromosome groups arranged at the equatorial plane of metaphase-I.
- It is given that 2n = 50, where 2n represents the diploid number of chromosomes.
- The diploid number of chromosomes is the total number of chromosomes in a cell, which includes both sets of chromosomes (one set from each parent).
- In this case, the diploid number is 50.
Determination of Visible Chromosomes
- During metaphase-I of meiosis, the chromosomes condense and align at the equatorial plane.
- At this stage, the chromosomes are visible and can be observed under a microscope.
- Each chromosome consists of two chromatids, which are identical copies of each other joined by a centromere.
- The chromatids separate during anaphase-I, resulting in haploid daughter cells with half the number of chromosomes.
- Since the diploid number is 50, there are 25 pairs of homologous chromosomes in the cell.
Calculation of Visible Chromosomes
- In metaphase-I, the homologous chromosomes align at the equatorial plane in pairs.
- Each pair of homologous chromosomes is counted as a single chromosome.
- Therefore, the number of visible chromosomes in metaphase-I is equal to the number of homologous chromosome pairs.
- As there are 25 pairs of homologous chromosomes, the number of visible chromosomes is 25.
Answer
- The correct answer is option C) 50.
- In metaphase-I of meiosis in this plant, there are 50 visible chromosomes arranged at the equatorial plane.
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A plant has number of chromosome groups arranged at equatorial plane o...
The first division of meiosis is characterized by pairing between homologous chromosomes snd exchange of segments between them so that normal diploid no is 50 25 chromosomes group or 25 pairs are expected in mataphase 1 that is 25 group means 50 chromosomes so answer is C
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A plant has number of chromosome groups arranged at equatorial plane of metaphase-I whose 2n = 50; the number of chromosomes visible will be:a)100b)25c)50d)75Correct answer is option 'C'. Can you explain this answer?
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A plant has number of chromosome groups arranged at equatorial plane of metaphase-I whose 2n = 50; the number of chromosomes visible will be:a)100b)25c)50d)75Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A plant has number of chromosome groups arranged at equatorial plane of metaphase-I whose 2n = 50; the number of chromosomes visible will be:a)100b)25c)50d)75Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A plant has number of chromosome groups arranged at equatorial plane of metaphase-I whose 2n = 50; the number of chromosomes visible will be:a)100b)25c)50d)75Correct answer is option 'C'. Can you explain this answer?.
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