RNA polymerase synthesizes a single-stranded copy of RNA based on which template?

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Prepare for the PLTW Biomedical Science Test. Study with flashcards and multiple choice questions, each question comes with hints and explanations. Get ready for your exam!

Multiple Choice

RNA polymerase synthesizes a single-stranded copy of RNA based on which template?

Explanation:
Transcription uses a DNA template to guide synthesis of RNA. RNA polymerase reads the template DNA strand (the antisense strand) and builds a single-stranded RNA that is complementary to that template. Because thymine in DNA pairs with adenine, the RNA sequence ends up nearly identical to the other DNA strand (the coding strand), substituting uracil for thymine. So the template is the DNA strand, not RNA or lipid, and the messenger RNA is the product, not the template.

Transcription uses a DNA template to guide synthesis of RNA. RNA polymerase reads the template DNA strand (the antisense strand) and builds a single-stranded RNA that is complementary to that template. Because thymine in DNA pairs with adenine, the RNA sequence ends up nearly identical to the other DNA strand (the coding strand), substituting uracil for thymine. So the template is the DNA strand, not RNA or lipid, and the messenger RNA is the product, not the template.

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