What Is the Role of RNA Polymerase in Transcription

question 71

Multiple Choice

What is the role of RNA polymerase in transcription?

• A) It catalyzes the synthesis of a new mRNA molecule.
• B) It copies the sequence of nucleotides on the template strand of DNA as a complementary sequence of mRNA bases.
• C) It catalyzes the formation of phosphate ester bonds.
• D) It is an enzyme.
• E) All of the above are correct.

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Definitions:

Continental Crust

The layer of igneous, sedimentary, and metamorphic rocks that forms the continents and continental shelves, characterized by its thickness and composition distinct from oceanic crust.

Mafic Basalt

A type of basaltic rock that is rich in magnesium and iron, characterized by its dark color and low silica content.

Decompression Melting

The melting of rock due to a decrease in pressure as it rises towards the Earth's surface, a common mechanism at mid-ocean ridges and mantle plumes.

Mantle-Derived Magmas

Magmas that originate from the partial melting of the Earth's mantle, often rich in magnesium and iron.