Both siRNAs and miRNAs are generated from longer RNA molecules by the enzyme Dicer, an RNase III–like enzyme that recognizes and digests longer dsRNAs or the stem-loop structures formed by miRNA precursors.  The siRNA and miRNA products are typically 21–23 nucleotides long

TLS Online TPP Program

#Id: 7570

#Unit 6. System Physiology – Plant

Organo-genesis

TLS Online TPP Program

#Id: 9444

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 6883

#Unit 3. Fundamental Processes

Inactive X chromosome also becomes associated with PRC2 complexes, which catalyze the trimethylation of histone H3 lysine 27. This methylation results in association of the PRC1 complex and transcriptional repression

TLS Online TPP Program

#Id: 8289

#Unit 1. Molecules and their Interaction Relevant to Biology

Plot of ln k versus 1/T gives a straight line with a slope (m) of –Ea/R and an intercept (b) of ln A. 

TLS Online TPP Program

#Id: 8462

#Unit 1. Molecules and their Interaction Relevant to Biology