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Polysomes are aggregates of

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Important Questions on Cell : The Unit of Life

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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
Balbiani rings are sites of:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
Which of the following are not membrane-bound?
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
Cellular organelles with membranes are:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
The chromosomes in which centromere is situated close to one end are:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell

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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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
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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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
Select the mismatch.
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
Which one of the following cell organelles are enclosed by a single membrane?
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
Water-soluble pigments found in plant cell vacuoles are:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
Select the correct matching in the following pairs:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
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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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
DNA is not present in:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
Nuclear envelope is a derivative of:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
A cell organelle containing hydrolytic enzymes is:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
Sister chromatids of chromosome have
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
Animal cells after removal of nuclei still contained DNA. The source of this DNA is:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
A protoplast is a cell:
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
The region of chromatin that is stained lightly is
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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Eukaryotic Cell
Microtubules are the constituents of: