Why does MCS increase cloning flexibility?MCS cloning flexibility क्यों बढ़ाता है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: It provides many restriction sitesकई restriction sites उपलब्ध कराता है
The governing concept is the multiple cloning site, or MCS, in a vector. An MCS is a short engineered region containing several unique restriction-enzyme recognition sites. Researchers can choose a suitable enzyme or a pair of enzymes according to the insert sequence, vector map, orientation, and whether directional cloning is required. This choice can simplify compatible-end formation and reduce unwanted vector rearrangement. Therefore option A is correct: the MCS provides several restriction sites and gives flexibility in selecting how an insert is introduced. It does not make pigments, convert DNA into water, or digest proteins; those options describe processes unrelated to restriction-site organization.मुख्य अवधारणा multiple cloning site या MCS है। MCS vector का एक छोटा engineered region होता है जिसमें कई अलग-अलग restriction enzymes के unique recognition sites रखे जाते हैं। शोधकर्ता insert की sequence, vector map और इच्छित orientation के अनुसार उपयुक्त enzyme या enzyme pair चुन सकते हैं। यदि directional cloning चाहिए, तो दो अलग enzymes का उपयोग भी किया जा सकता है। इसीलिए option A सही है: अनेक restriction sites उपलब्ध होने से insert जोड़ने के कई विकल्प मिलते हैं। MCS pigment नहीं बनाता, DNA को water में नहीं बदलता और protein को digest नहीं करता; ये सभी विकल्प restriction-site organization से असंबंधित हैं।
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