NEET BIOLOGY

Detailed explanation-1: -Prokaryotes are organisms whose cells lack a nucleus and other organelles. Prokaryotes are divided into two distinct groups: the bacteria and the archaea, which scientists believe have unique evolutionary lineages.

Detailed explanation-2: -Prokaryotes (meaning ‘before nucleus’) are cells without a definite nucleus. The DNA floats in the cytoplasm and they divide through mitosis. RBC and platelets present in eukaryotes also do not have the nucleus. It’s RBC (Red Blood Corpuscles) and platelets.

Detailed explanation-3: -These genetic materials present in the cell helps in the different function of the cell. They help in replication as well as carry genetic material. In prokaryotes, the DNA is arranged in the irregular-shaped region known as the nucleoid. Hence we can say that the prokaryotes can survive without a nucleus.

Detailed explanation-4: -Prokaryotic cells lack a nucleus and membrane-bound structures. Eukaryotic cells have a nucleus and membrane-bound structures called organelles.

Detailed explanation-5: -The cell membrane is bound to DNA and is in close contact with the cytoplasm. There is no enclosing membrane, because there is no actual nucleus, but merely a concentration of DNA called a nucleoid. Therefore, prokaryotes can live without a nucleus.