Best answer for the question 2. Which of the following DNA extraction methods involves a commercially available styrene polymer resin that binds metal ions
O A. Organic extraction
OB. EDTA extraction
OC. Chelex extraction
O D. Phenol-chloroform extraction

The correct answer is - C. Chelex extraction.

Explanation:

Chelex extraction is a DNA extraction method that involves a Chelex100 chelating resin that prevents DNA degradation by traping the degradative enzymes and from potential contaminants.

In absence of this Chelex resin, a styrene polymer resin that binds metal ions that might inhibit downstream analyses. This process involves a commercially used Chelex 100 which is a styrene-divinylbenzene copolymer that has paired iminodiacetate ions, which act as chelating groups in binds metal ions.

integrated circuit (ic) is defined as a set of electronic circuits on one small flat piece of semiconductor material, normally silicon. a functional electronic circuit requires transistors, resistors, capacitors, inductors, etc., and the connections between them.

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