In wild-type genes, RNA polymerase II terminates transcription at any one of multiple possible sites within about

2 kb of the polyadenylation signal. When the polyadenylation signal is mutated, RNA polymerase II does not terminate transcription, but continues transcription until the next poly(A) site.

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#Id: 7437

#Unit 5. Developmental Biology

The emerging column of cells topples over called ‘the slug’.

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#Id: 2964

#Unit 3. Fundamental Processes

The major role of ORC is to identify the origin to the Cdc6 and MCM proteins that control initiation and licensing.

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#Id: 670

#Unit 3. Fundamental Processes

Extensive shortening of telomeres is recognized by the cell as a double-strand break and consequently triggers cell cycle arrest and apoptosis.

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#Unit 6. System Physiology – Plant

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#Id: 451

#Unit 2. Cellular Organization

Nucleosomes that contain linker H1 histones are referred to as chromatosomes.