The characteristic of blue green algae is

DNA without histone

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Nuclear membrane absent

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70S ribosomes

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All of the above

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Solution

The correct option is C All of the above
The blue green algae are prokaryotic organisms. These organisms do not have developed cellular structures like the nucleus, nuclear membrane, etc. The chromosomal DNA is present as fibre network in the cytoplasm without association with the histone proteins. All the prokaryotic cells possess 70S ribosomes which are composed of two subunits, 30S and 50S.
Thus, the correct answer is option D.

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Similar questions

Q. How many of the following organisms have nuclear membrane ?
Mycoplasma, Blue - green algae, Fungi, Bacillus, Yeast, Purple photosynthetic bacteria, E.coli, Chlamydomonas

Q. Which of the following are true for eukaryotic cells?
(i) They do not have a nuclear menbrane.
(ii) They have a well organized nucleus.
(iii) They have a nuclear membrane.
(iv) Blue green algae are eukaryotic cells.

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Question 22
Which of the following statements are true for eukaryotic cells?

(i) They do not have a nuclear membrane.
(ii) They have a well organised nucleus.
(iii) They have a nuclear membrane.
(iv) Blue green algae are eukaryotic cells.

(a) ii and iv
(b) ii and iii
(c) i and ii
(d) i and iv

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