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MCQS
Sindh MDCAT 2023
Q-71
<p>Membranous infoldings in bacteria that initiate DNA replication is:</p>
Biology
Miscellaneous
Question 71 of 200
Multiple Choice
Mesosomes
71.13%
Explanation:

Mesosomes are invaginations of cell-membrane into the cytoplasm. Mesosomes are in the form of vesicles, tubules or lamellae. Their function is to help in DNA replication, cell-division, respiration and in export of enzymes.

Hence, Option A is correct.

STB Pg 102.

Peroxisomes
9.68%
Explanation:

Peroxisomes and glyoxysomes are collectively called microbodies. They are similar to lysosomes in sense that they are single membranous, vesicular structures, containing enzymes and originate from Golgi Apparatus.

Glyoxysomes
5.40%
Explanation:

Peroxisomes and glyoxysomes are collectively called microbodies. They are similar to lysosomes in sense that they are single membranous, vesicular structures, containing enzymes and originate from Golgi Apparatus.

Nucleosomes
13.78%
Explanation:

Nucleosomes are DNA packaging units formed by histone proteins in cell nucleus.

Explanation

Mesosomes are invaginations of cell-membrane into the cytoplasm. Mesosomes are in the form of vesicles, tubules or lamellae. Their function is to help in DNA replication, cell-division, respiration and in export of enzymes.

Hence, Option A is correct.

STB Pg 102.