The “introns late” hypothesis is the proposal that the ancestral protein-coding sequences were uninterrupted and that introns were subsequently inserted into them

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#Unit 13. Methods in Biology

In case of nested PCR, the inner primers have a lower annealing temperature than that of the outer pair. For the initial several cycles of PCR the higher denaturation and annealing temperatures are used; as a result, only the outer pair of primer is able to prime amplification. 

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#Unit 3. Fundamental Processes

UHRF1 also interacts with methylated histone H3, which connects the maintenance of DNA methylation with the stabilization of heterochromatin structure

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#Unit 6. System Physiology – Plant

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#Unit 4. Cell Communication and Cell Signaling

Series of concentration of antibodies present as GAMDE.

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#Unit 7. System Physiology – Animal

A countercurrent system is a system in which the inflow runs parallel to, counter to, and in close proximity to the outflow for some distance. This occurs for both the loops of Henle and the vasa recta in the renal medulla