What is the best stage to count the number and study the morphology of chromosome?

Which stage is easiest to study morphology of chromosomes?

Metaphase is the best phase to count total number of chromosomes in any species and detailed study of morphology of chromosome. Idiogram (arrangement of chromosomes in a series of decreasing length) can be drawn in the stage.

What phase is best for studying chromosomes?

Metaphase is the best phase to observe the shape, number and size of the chromosomes. After metaphase, there is a stage of mitosis which results in the splitting up of chromosomes. This phase is called Anaphase and it is best in heredity to observe and study chromosomes.

At what stage are chromosomes counted?

Cells in metaphase are used in medical research to measure whether all of the chromosomes are present and whether or not they are all intact. This process of looking at chromosomes under the microscope is called karyotyping.

At what stage are chromosomes most easily counted and why?

Answer: Metaphase is a stage during the process of cell division (mitosis or meiosis). Usually, individual chromosomes cannot be observed in the cell nucleus. However, during metaphase of mitosis or meiosis the chromosomes condense and become distinguishable as they align in the center of the dividing cell.

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Which of the following is suitable for study of morphology of chromosome?

Chromosome spreading combined with Giemsa staining is well suited for visualizing overall chromosome morphology. … If interphase cells are spread, the morphology of their nuclei can also be visualized by this technique (Waizenegger et al., 2002).

Which stage of mitosis is best for studying chromosomes and why?

The chromosomes appear shortest and thickest during the metaphase and are arranged at the equator and form an apparent plate called as the equatorial or as the metaphase plate thus readily visible. Therefore, this phase is often chosen for karyotyping and for the chromosome analysis.

What is the best stage in the cell cycle for chromosome analysis?

The best mitotic stage for chromosome analysis is prometaphase or metaphase. A typical metaphase chromosome consists of two arms separated by a primary constriction or centromere.

Why is karyotyping done in metaphase only?

Karyotype is done at metaphase because metaphase is the only stage in cell cycle when the chromosomes are unduplicated and line up along the equatorial plate of the spindle. The chromosomes are easier to see when they are elongated and uncondensed.

How do you observe chromosomes?

By looking at your chromosomes under a microscope and taking pictures of them, which is called karyotyping, lab specialists may be able to tell whether or not you have any extra or missing chromosomes or pieces of chromosomes. Abnormalities in your chromosomes help healthcare providers diagnose many health conditions.