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TLS Online TPP Program

#Id: 6112

Mismatch Repair removes errors that escape Proofreading

#Unit 3. Fundamental Processes #Mutation and Repair #Part B Pointers
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TLS Online TPP Program

#Id: 485

#Unit 2. Cellular Organization

Active genes/euchromatin are often found at the borders of chromosome territories, and active genes from several chromosomes may cluster in inter-chromosomal territories that are enriched in transcription machinery.
TLS Online TPP Program

#Id: 486

#Unit 2. Cellular Organization

MARs are AT rich heterochromatic regions which contains cis-acting sites that regulate transcription, 5’ introns, and a recognition site for topoisomerase II is usually present in the MAR.
TLS Online TPP Program

#Id: 487

#Unit 2. Cellular Organization

Presence of topoisomerase II binding sites shows high degree of negative supercoiling is usually present in the MAR.
TLS Online TPP Program

#Id: 488

#Unit 2. Cellular Organization

(MARs) also called scaffold attachment regions (SARs), or S/MARs in case of metaphase chromosome as the same sequences appear to attach to the protein substructure in both metaphase and interphase cells.
TLS Online TPP Program

#Id: 489

#Unit 2. Cellular Organization

In interphase nuclei, this underlying proteinaceous structure changes its organization to occupy the entire nucleus; during interphase the structure is referred to as the matrix rather than the scaffold.
TLS Online TPP Program

#Id: 490

#Unit 2. Cellular Organization

S/MARs is a DNA sequence which binds to base structure called scaffold.