Mafia hypothesis – In Brood parasitism

Cuckoos or cowbirds check their host’s nests and destroy all eggs if their owner is not present. If the parasite egg has been removed, they destroy the host’s nest and kill or injure the nestlings.

TLS Online TPP Program

#Id: 799

#Unit 3. Fundamental Processes

Mutations in the rpoB gene can reduce termination at a rho-dependent site.  Mutations in rpoB can restore the ability to terminate transcription at rho-dependent sites in rho mutant bacteria.

TLS Online TPP Program

#Id: 800

#Unit 3. Fundamental Processes

Transcription is formation of RNA from genome (DNA/RNA)

TLS Online TPP Program

#Id: 801

#Unit 3. Fundamental Processes

On the basis of Transcription, viruses have been classified called as Baltimore Classification

TLS Online TPP Program

#Id: 802

#Unit 3. Fundamental Processes

According to Baltimore, for transcription antisense (-) strand of genome is required

TLS Online TPP Program

#Id: 803

#Unit 3. Fundamental Processes

There are two factors that regulate Prokaryotic Transcription

1. RNA Polymerase

2. Promoter Location & Sequences

TLS Online TPP Program

#Id: 804

#Unit 3. Fundamental Processes

RNA Polymerase SDS page shows two very large subunits: beta (b) and beta-prime (b’), with molecular masses of 150 and 160 kD, respectively.