Question

Read the following statements about eukaryotic cells and choose the incorrect statements .
(i)They have locomotory and cytoskeletal structure.
(ii)Their genetic material is organized into chromosomes.
(iii)There is extensive compartmentalization of cytoplasm.
(iv)They posses an organised nucleus without a nuclear envelope.

• A. $iiiandiv$
• B. $Onlyiv$
• C. $Onlyii$
• D. $iandiv$

Answer 1

Answer: (B)

$Onlyiv$

Eukaryotic cells have a variety of complex locomotory structures what are they. The locomotory structures are cilia or flagella.

In eukaryotes, however, genetic material is housed in the nucleus and tightly packaged into linear chromosomes. Chromosomes are made up of a DNA-protein complex called chromatin that is organized into subunits called nucleosomes.

"In eukaryotic cells, there is an extensive compartmentalisation of cytoplasm through the presence of membrane-bound organelles". As it is also observed within a cell that different organelles such as the nucleus, mitochondria, vacuole are membranes bound and in this way create cellular compartments within a cell.

Prokaryotic cells do not have a true nucleus that contains their genetic material as eukaryotic cells do. Instead, prokaryotic cells have a nucleoid region, which is an irregularly-shaped region that contains the cell's DNA and is not surrounded by a nuclear envelope.

Hence the correct answer is (B)