NEET BIOLOGY

Detailed explanation-1: -In prokaryotes a well-defined nucleus is absent whereas there is the presence of the nucleoid which is similar to the nuclear membrane. In the eukaryotic organism, the cell wall is absent, and if present it is then made up of the polysaccharide.

Detailed explanation-2: -In what type of organisms are the nucleus and nucleoid found? The nucleus is found in eukaryotic organisms, while nucleoids are found only in prokaryotes. These structures essentially contain genetic material, and DNA is found in both the nucleus and nucleoid.

Detailed explanation-3: -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-4: -Prokaryotic cells differ from eukaryotic cells in that they lack any membrane-bound organelles, including a nucleus. Instead, prokaryotic cells simply have an outer plasma membrane, DNA nucleoid structure, and ribosomes.

Detailed explanation-5: -They have genetic material (DNA) but it is in a nucleoid region. The eukaryotes have their DNA in a nucleus that is enclosed by a membranous nuclear envelope. The nucleus of the eukaryotes is surrounded in the cell by the cytoplasm.