If you are provided with root-tips of onion in your
class and are asked to count the chromosomes,
which of the following stages can you most
conveniently look into?
(a) Metaphase (b) Telophase
(c) Anaphase (d) Prophase
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(a) Metaphase
Explanation:
Root tips contain more dividing cells, therefore root tips of onion are used to study the stages of cell division. By metaphase stage, condensation of chromosomes completed and they can be observed easily and clearly under microscope. So morphology of chromosomes is easily studied. For chromosome analysis and study of nucleus, metaphase chromosomes are selected because they are easily seen.
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