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

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#Unit 3. Fundamental Processes

Holoenzyme binds to promoters much more tightly, with an association constant ,1000 times higher on average and a half-life that can be as long as several hours

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#Unit 3. Fundamental Processes

significantly higher dissociation rate at 25C than at 37C, and a much higher dissociation rate at 15C. Because high temperature promotes DNA melting

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#Unit 3. Fundamental Processes

TLS Online TPP Program

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#Unit 3. Fundamental Processes

Mechanism: How Polymerase Find Promoter Sequences

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#Unit 3. Fundamental Processes

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#Unit 3. Fundamental Processes

The overall reaction rate for the bacterial RNA polymerase can be as fast as 40–50 nucleotides/ second at 37°C for most transcripts; this is about the same as the rate of translation (15 amino acids/sec), but much slower than the rate of DNA replication (800 bp/sec).