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).

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#Id: 3873

#Unit 5. Developmental Biology

AcbA is cleaved by the TagC protease to produce the peptide     SDF-2.

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#Id: 436

#Unit 2. Cellular Organization

The four core histones are present in equal amounts in the cell. H1 is half as abundant as the other histones, which is consistent with the finding that only one molecule of H1 can associate with a nucleosome.

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#Id: 871

#Unit 13. Methods in Biology

Variants of PCR has been devised to enhance efficiency are 

a. qPCR with SYBR, Taqman and MB 

b. Nested PCR

c. Touchdown PCR

d. Hot-start PCR 

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#Id: 2245

#Unit 11. Evolution and Behavior

Deletion plays a key role in gene trafficking.which is the movement of genes to new sites in the genome.

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#Id: 9579

#Unit 11. Evolution and Behavior

Silurian - Origin of jawed fishes and arthropods, Invasion of land by primitive land plants