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Organelle covered by the double membrane is
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Important Questions on Cell Theory and Cell as the Basic Unit of Life
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Cellular organelles with membranes are:
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Water-soluble pigments found in plant cell vacuoles are:
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Which of the following are not membrane-bound?
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Which of the following is true for nucleolus?
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Many ribosomes may associate with a single mRNA to form multiple copies of a polypeptide simultaneously. Such strings of ribosomes are termed as
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Match the columns and identify the correct option.
| Column I | Column II | ||
| A | Thylakoids | (i) | Disc-shaped sacs in Golgi apparatus |
| B | Cristae | (ii) | Condensed structure of DNA |
| C | Cisternae | (iii) | Flat membranous sacs in stroma |
| D | Chromatin | (iv) | Infoldings in mitochondria |
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The chromosomes in which centromere is situated close to one end are:
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Microtubules are the constituents of:
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Mitochondria and chloroplast are:
(i) Semi - autonomous organelles
(ii) Formed by the division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery
Which one of the following option is correct?
HARD
Nuclear envelope is a derivative of:
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Which of the following events do not occur in rough endoplasmic reticulum?
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Balbiani rings are sites of:
HARD
Select the correct matching in the following pairs:
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A cell organelle containing hydrolytic enzymes is:
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The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are:
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Which one of the following cell organelles are enclosed by a single membrane?
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The region of chromatin that is stained lightly is
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The Golgi complex participated in
