The absorption of UV light by nucleic acids arises from n ® p* and p ® p* transitions of the purine and pyrimidine bases that occur between 260nm and 275 nm.

TLS Online TPP Program

#Id: 2085

#Unit 8. Inheritance Biology

Chromosome Mutations

a. Chromosome rearrangements

b. Aneuploidy

c. Polyploidy

TLS Online TPP Program

#Id: 2086

#Unit 8. Inheritance Biology

G bands- staining via Giemsa dye, distinguish areas of DNA that are rich in adenine-thymine (A–T) base pairs.

TLS Online TPP Program

#Id: 2087

#Unit 8. Inheritance Biology

R bands detects rich in cytosine–guanine base pairs.

TLS Online TPP Program

#Id: 2088

#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.

TLS Online TPP Program

#Id: 2089

#Unit 8. Inheritance Biology

C bands detects centromeric heterochromatin in chromosome.

TLS Online TPP Program

#Id: 2090

#Unit 8. Inheritance Biology

T bands specially telomere staining.