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प्रश्न
What is a chromosome?
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उत्तर
During cell division, the long and fibrous hereditary material, chromatin gets converted into a short, thick, and ribbon-like structure called a chromosome.
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संबंधित प्रश्न
Write true or false for each statement. Rewrite the false statements correctly:
The size of a cell is usually measured in centimetres
Write a short answer.
Why are mitochondria called the powerhouse of the cell?
Write a short answer.
What is the relationship between growth and cell division?
What is cell theory? Name the three scientists whose work led to the formulation of the cell theory.
What was the contribution of the following to our knowledge of cells?
Schleiden
Who studied the cell first?
Name the different organelles in a cell?
Under the microscope, Priya observes a cell that has a cell wall and distinct nucleus. The cell that she observed is
Make sketches of animal and plant cells which you observe under microscope.
Matching:
| 1. | Discovery of cell | a. | Nerve cell |
| 2. | Unicellular organism | b. | spirogyra |
| 3. | Multicellular organism | c. | Robert Hooke |
| 4. | Longest cell | d. | Cyanobacteria |
| 5. | Prokaryotic cell | e. | Amoeba |
