Most of the cohesins along the chromosome arms are removed from chromosomes during prophase, mediated by phosphorylation of cohesins by Plk1 & Aurora B kinase.

TLS Online TPP Program

#Id: 2856

#Unit 13. Methods in Biology

Common colorimetric and UV absorption assays

TLS Online TPP Program

#Id: 6704

#Unit 3. Fundamental Processes

The mechanism of pre-tRNA splicing differs in three fundamental ways from the mechanisms used by self-splicing introns and spliceosomes.

First, splicing of pre-tRNAs is catalyzed by proteins, not by RNAs. Second, a pre-tRNA intron is excised in one step thatentails simultaneous cleavage at both ends of the intron. Finally, hydrolysis of GTP and ATP is required to join the two tRNA halves generated by cleavage on either side of the intron.

TLS Online TPP Program

#Id: 9527

#Unit 6. System Physiology – Plant

Plant viruses are biotrophs and they enters in the plants via plasmodesmata and phloem

TLS Online TPP Program

#Id: 9098

#Unit 4. Cell Communication and Cell Signaling

Glycogen breakdown and synthesis is coordinately regulated by the second messengers Ca2+ and cAMP, whose levels are regulated by neural and hormonal stimulation, respectively

TLS Online TPP Program

#Id: 5971

#Unit 10. Ecological Principles

NPP of different ecosystem  Swamp and marsh ecosystems, can produce more biomass annually than tropical forests. In Open ocean, Nutrients are scarce in the sunlit surface waters, where low nutrient levels limit productivity to a tenth that of temperate forests