Question

Part A Dark G bands that appear along chromosomes contain O heterochromatic regions. telomeres. centromeres. euchromatic regions. Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining

Answer 1

G banding is giemsa banding which means staining with giemsa stain in karyotyping the chromosomes. On using this stain dark and light bands appear. The band pattern is different for different chromosome. Using this abnormalities of chromosomes can be determined. The tightly packed DNA is heterochromatin AT rich takes more dye and stains dark. Lightly stained is Euchromatin which is GC rich. Hence the dark G band that appears in G banding is heterochromatin.

Telomere Heterochromatim Centromere & Euchromatin coding DNA chromosome DO Darkly stained lightly stained Heterochromatin (No Coding Euchromatin (coding) c Scanned with CamScanner