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A double membrane is present in:
Where are chromosomes located in a cell? What are they composed of? What important information do they contain?
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Assertion (A): Chromosomes are composed of DNA and proteins. Reason (R): Chromosomes are visible as thread-like structures in non-dividing cells.
In brief, explain what happens when the following organelles are removed from a plant cell: (a) Nucleus (b) Cell wall (c) Cell membrane (d) Vacuole (e) Golgi apparatus
Give reason for the following: (a) Meristematic cells possess a prominent nucleus and dense cytoplasm but are devoid of vacuoles. (b) Plants like cacti have thick epidermis. (c) Chewing a pear fruit gives a crunchy and granular sensation. (d) It is challenging to remove the husk from a coconut. (e) Bones are strong and non-flexible.
Draw a well labelled diagram of an eukaryotic nucleus. How is it different from nucleoid?