Second constrictions are distinguish from primary as chromosome bends only in primary.
Telomeres – Exhibit polarity & prevent union of chromosome ends with one another.
Second Constriction involved in organization of nucleolus = nucleolus organizer region
Histones (H2A, H2B (lysine), H3 & H4 (arginine)) hold by H1 lysine rich linker.
DNA content in pictograms.
Most abundant form of chromatin in interphase nucleus.
Ideogram – represent haploid set of organism in a series.
Asymmetric Karyotype is an advanced feature over symmetric karyotype.
Heterochromatin – Condensed, more deep stain, late replicating
Euchromatin – expanded, less deep stain, early replicating or diffuse regions