Poly(Gly) chains also adopt secondary conformations. 

In the solid state poly(Gly) has been shown to adopt two regular conformations designated I and II. 

State I has an extended conformation like a β strand whilst state II has three resides per turn and is similar to poly(Pro).

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#Unit 8. Inheritance Biology

R bands detects rich in cytosine–guanine base pairs.

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#Unit 8. Inheritance Biology

Q bands staining with quinacrine mustard and viewing the under ultraviolet light; variation in the brightness of Q bands results from differences in the relative numbers of C-G and A-T base pairs.

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#Unit 8. Inheritance Biology

C bands detects centromeric heterochromatin in chromosome.

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#Unit 8. Inheritance Biology

T bands specially telomere staining.

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Duplication- is a mutation in which part of the chromosome has been doubled.

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#Unit 8. Inheritance Biology

Reverse duplication- Duplicated segment is inverted.