Many ribosomes may associate with a single mRNA to form multiple copies of a polypeptide simultaneously. Such strings of ribosomes are termed as
1. Polysome
2. Polyhedral bodies
3. Plastidome
4. Nucleosome

 

Subtopic:  Ribosome and Inclusion Bodies |
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Select the incorrect match:
1. Lampbrush – Diplotene bivalents chromosomes
2. Allosomes – Sex chromosomes
3. Submetacentric – L-shaped chromosomes
4. Polytene – Oocytes of amphibians chromosomes
Subtopic:  Nucleus: Chromosomes |
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Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?
1. Ribosome
2. Chloroplast
3. Mitochondrion
4. Lysosome

Subtopic:  Mitochondria |
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Microtubules are the constituents of
1. spindle fibres, centrioles and cilia
2. centrioles, spindle fibres and chromatin
3. centrosome, nucleosome and centrioles
4. cilia, flagella and peroxisomes

 

Subtopic:  Cilia & Flagella |
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Mitochondria and chloroplast are 
I. semi-autonomous organelles. 
II. formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery. 
Which one of the following options is correct?
1. II is true but I is false
2. I is true but II is false
3. Both I and II are false
4. Both I and II are correct
Subtopic:  Plastids | Mitochondria |
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Which one of the following cell organelles is enclosed by a single membrane?
1. Chloroplasts
2. Lysosomes
3. Nuclei
4. Mitochondria

 

Subtopic:  Lysosomes |
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A complex of ribosomes attached to a single strand of RNA is known as
1. polymer
2. polypeptide
3. okazaki fragment
4. polysome

 

Subtopic:  Ribosome and Inclusion Bodies |
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Which of the following events does not occur in rough endoplasmic reticulum ?
1. Protein folding
2. Protein glycosylation
3. Cleavage of signal peptide
4. Phospholipid synthesis

 

Subtopic:  Intro to Endomembrane System: Endoplasmic Reticulum |
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Which of the following components provides sticky character to the bacterial cell?

1. Nuclear membrane

2. Plasma membrane

3. Glycocalyx

4. Cell Wall

Subtopic:  Details of Prokaryotic Cell Structure |
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The Golgi complex participates in
1. Fatty acid breakdown
2. Formation of secretory vesicles
3. Respiration in bacteria
4. Activation of amino acid

 

Subtopic:  Golgi Apparatus |
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