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In which of the following DNA is not present :-
- a)Bacteriophage
- b)Tobacco mosaic virus
- c)Mitochondria
- d)Chloroplast
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
In which of the following DNA is not present :-a)Bacteriophageb)Tobacc...
Explanation:
DNA (Deoxyribonucleic acid) is a genetic material found in all living organisms except some viruses. Let's see one by one which of the given options have DNA and which one does not have DNA.
a) Bacteriophage:
Bacteriophage is a virus that infects bacteria. It has DNA as its genetic material. So, DNA is present in Bacteriophage.
b) Tobacco mosaic virus:
Tobacco mosaic virus is a virus that infects plants. It has RNA as its genetic material instead of DNA. So, DNA is not present in Tobacco mosaic virus.
c) Mitochondria:
Mitochondria are organelles present in eukaryotic cells (cells with a nucleus) that generate energy for the cell. Mitochondria have their own DNA called mitochondrial DNA (mtDNA) which is circular in shape. So, DNA is present in Mitochondria.
d) Chloroplast:
Chloroplast is an organelle present in plant cells that is responsible for photosynthesis. Chloroplasts have their own DNA called chloroplast DNA (cpDNA) which is circular in shape. So, DNA is present in Chloroplast.
Therefore, the correct answer is option 'B' which says Tobacco mosaic virus does not have DNA as its genetic material.
DNA (Deoxyribonucleic acid) is a genetic material found in all living organisms except some viruses. Let's see one by one which of the given options have DNA and which one does not have DNA.
a) Bacteriophage:
Bacteriophage is a virus that infects bacteria. It has DNA as its genetic material. So, DNA is present in Bacteriophage.
b) Tobacco mosaic virus:
Tobacco mosaic virus is a virus that infects plants. It has RNA as its genetic material instead of DNA. So, DNA is not present in Tobacco mosaic virus.
c) Mitochondria:
Mitochondria are organelles present in eukaryotic cells (cells with a nucleus) that generate energy for the cell. Mitochondria have their own DNA called mitochondrial DNA (mtDNA) which is circular in shape. So, DNA is present in Mitochondria.
d) Chloroplast:
Chloroplast is an organelle present in plant cells that is responsible for photosynthesis. Chloroplasts have their own DNA called chloroplast DNA (cpDNA) which is circular in shape. So, DNA is present in Chloroplast.
Therefore, the correct answer is option 'B' which says Tobacco mosaic virus does not have DNA as its genetic material.
Community Answer
In which of the following DNA is not present :-a)Bacteriophageb)Tobacc...
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In which of the following DNA is not present :-a)Bacteriophageb)Tobacco mosaic virusc)Mitochondriad)ChloroplastCorrect answer is option 'B'. Can you explain this answer?
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