Chromosomes counting is best done duringa)Late anaphaseb)Late prophasec)Telophased)MetaphaseCorrect answer is option 'D'. Can you explain this answer?

Question

Answer

The crt opt is D. Cuz during metaphase, all the chromosomes lined up on the metaphase plate and further proceeding anaphase. So it is easy to count them at that stage by counting the number of functional centromere. Bcoz the number of chromosomes = count the number of functional centromere.

Answer

In this stage, the centrioles are at opposite poles of the cell. The homologous chromosome pairs (the bivalents), are tightly coiled and condensed and become arranged on a plane called the metaphase plate or equatorial plate. This plate is equidistant from the poles.

Answer

Because during metaphase, all the chromosomes lined up on the metaphase plate and further proceeding anaphase. So it is easy to count them at that stage by counting the number of functional centromere. Because the number of chromosomes = count the number of functional centromere.

Answer

Metaphase is the best stage for counting chromosomes
Metaphase is the stage of mitosis where the chromosomes are aligned along the metaphase plate in the middle of the cell. This is the most suitable stage for counting chromosomes because they are condensed and clearly visible under a microscope.
Reasons why Metaphase is the best stage for counting chromosomes:
- **Chromosomes are condensed:** During metaphase, the chromosomes are highly condensed and can be easily distinguished from one another. This makes it easier to count the number of chromosomes present in a cell.
- **Chromosomes are aligned:** In metaphase, the chromosomes are aligned along the metaphase plate, making it easier to count and identify individual chromosomes. This alignment allows for a clear view of each chromosome.
- **Chromosomes are at their most visible:** The chromosomes are at their most visible state during metaphase, as they are fully condensed and organized. This makes it easier to accurately count the number of chromosomes present in a cell.
- **Minimal movement:** During metaphase, the chromosomes are relatively stable and do not move around much. This reduces the chances of miscounting or losing track of individual chromosomes.
In conclusion, counting chromosomes is best done during metaphase as it provides the most ideal conditions for accurately identifying and counting the number of chromosomes present in a cell.

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