Which of the following events does not occur in rough endoplasmic reticulum ?

Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells ?

The nucleosome core particle plays a crucial role in DNA packaging. Which of the following correctly describe its composition and characteristics?

(a) It comprises eight histone proteins.

(b) It involves approximately 146 base pairs of DNA wrapped around the histone core.

(c) Histones are rich in acidic amino acids like aspartic acid and glutamic acid.

(d) The DNA is wrapped around the histone core in a left-handed manner.

(e) Nucleosomes contribute to the higher-order structure of chromatin.

Within the nucleus DNA is organised along with proteins into material called

Centrioles arise

Nuclear membrane is continuous with

Which component of the cytoskeleton is primarily responsible for intracellular transport of vesicles and organelles?

The term mitochondrion was given by

Which of the following statements regarding chromatin organization are correct?

(a) Euchromatin is loosely packed and transcriptionally active.

(b) Heterochromatin is densely packed and transcriptionally inactive.

(c) The nucleosome core particle consists of a histone octamer wrapped by negatively charged DNA.

(d) Histones are rich in basic amino acids like lysine and arginine.

(e) A typical nucleosome contains approximately 200 bp of DNA helix.

Tubulin protein occurs in

Mark the incorrect about ribosomes