SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The site of respiration in prokaryotes
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The site of photosynthesis in eukaryotes
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The site of protein synthesis in prokaryotes and eukaryotes
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The site of hereditary material in prokaryotes
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Detailed explanation-1: -The DNA in prokaryotes is contained in a central area of the cell called the nucleoid, which is not surrounded by a nuclear membrane. Many prokaryotes also carry small, circular DNA molecules called plasmids, which are distinct from the chromosomal DNA and can provide genetic advantages in specific environments.
Detailed explanation-2: -Prokaryotes have features such as: A single loop of DNA free in the cytoplasm. An additional circular piece of DNA called a plasmid, used to transfer genetic material from one cell to another.
Detailed explanation-3: -They have played a stellar role in the development of molecular biotechnology. They act as vehicles to introduce foreign DNA into bacteria. The DNA they deliver have genes for antibiotic resistance.
Detailed explanation-4: -They replicate autonomously. The size varies from a few base pairs to thousands bp. Many antibiotic resistance genes are present in plasmids. They are widely used in genetic engineering for manipulating and transferring genes.
Detailed explanation-5: -Prokaryotes do not have a nucleus. Instead, their genetic material is present in the cytoplasm and the region where this is present is called nucleoid.