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Majority of proteins (of intracellular use) are not synthesized on:
A- Ribosomes produced in the nucleolus.
B- Ribosomes attached with ER and nuclear membrane.
C- Ribosomes present in the chloroplast.
D- Free ribosomes of eukaryotic cells.
(a)A and D
(b)B, C and D
(c)D and C
(d)A, C and B

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Important Questions on Cell The Unit of Life
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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?

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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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