H3.3 is expressed throughout the cell cycle, in contrast to most histones that are expressed during S phase during replication.

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#Id: 752

#Unit 3. Fundamental Processes

DNA polymerase binds two divalent metal ions (typically Mg2+ orZn2+) that alter the chemical environment around the correctly base-paired dNTP and the 3’-OH of the primer

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#Id: 402

#Unit 2. Cellular Organization

Centromeric H3 (or CenH3) histone, known as Cse4 in yeast. CenH3 histones are incorporated into specialized nucleosomes present at centromeres.

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#Id: 2635

#Unit 13. Methods in Biology

Double-stranded DNAs, RNAs, and hybrids are protected from S1 nuclease degradation. 

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#Id: 3246

#Unit 3. Fundamental Processes

G modification. The figure shows specific sites on guanine that are vulnerable to damage by chemical treatment, such as alkylation or oxidation, and by radiation.

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#Id: 5763

#Unit 10. Ecological Principles

Berger-Parker complement index is that it is very easy to compute.  Values of DBPC vary from 0 to 1.

DBPC=1 - DBP