NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Prokaryotes have a nucleus to store their DNA. True or False?
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Prokaryotes do not have a nucleus. Instead, their DNA floats around inside the cell. Eukaryotes are single-celled (unicellular) organisms.

Detailed explanation-2: -Prokaryotes do not have a nucleus. Instead prokaryote DNA can be found, bundled but free-floating, in a central region called the nucleoid. Prokaryote DNA is usually found as a single chromosome of circular DNA. These organisms also lack other membrane-bound structures such as the endoplasmic reticulum.

Detailed explanation-3: -The prokaryotic cell’s genetic material is located in an area with an irregular form called a nucleoid, which is a nucleus-like structure. Prokaryotic cells lack a true nucleus. The nucleus is devoid of the nuclear membrane.

Detailed explanation-4: -Prokaryotes are small and lack membrane-bound nuclei Their genetic material isn’t stored within a membrane-bound nucleus. Instead, it is stored in a nucleoid that floats in the cell’s cytoplasm.

Detailed explanation-5: -All cells fall into one of these two broad categories. Only the single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes-pro means before and kary means nucleus. Animals, plants, fungi, and protists are all eukaryotes-eu means true-and are made up of eukaryotic cells.

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