NEET BIOLOGY

Detailed explanation-1: -Chromatin is a complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells. Nuclear DNA does not appear in free linear strands; it is highly condensed and wrapped around nuclear proteins in order to fit inside the nucleus.

Detailed explanation-2: -DNA molecules first wrap around the histone proteins forming beads on string structure called nucleosomes. Nucleosomes further [inaudible] and condense/gather to form fibrous material which is called chromatin.

Detailed explanation-3: -Euchromatin is the lightly packed form of chromatin, whereas heterochromatin refers to the condensed form.

Detailed explanation-4: -The chromatids are made of a substance called chromatin, which is a lesser condensed form of chromosomes made up of long strand of DNA, wrapped around the proteins called histones.

Detailed explanation-5: -Chromosome condensation is one of the major chromatin-remodeling events that occur during cell division. The changes in chromatin compaction and higher-order structure organization are essential requisites for ensuring a faithful transmission of the replicated genome to daughter cells.