In Eukaryotes,when RNA Polymerase II Initiates Transcription: 1

question 37

Multiple Choice

In eukaryotes,when RNA Polymerase II initiates transcription: 1.Basal transcription factors,designated TFIX (X is a letter designating individual factors) ,are required.
2) TFIID is the first protein to bind the promoter.
3) TFIIA catalyzes the unwinding of the DNA helix

• A) 1
• B) 2
• C) 3
• D) 1 and 2
• E) All of these

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Definitions:

Codon

A sequence of three nucleotides in messenger RNA (mRNA) that specifies the addition of a specific amino acid to a growing polypeptide chain during protein synthesis.

AUG

The codon for methionine in messenger RNA (mRNA), serving as the initiation signal for translation in protein synthesis.

UAA

A stop codon in the genetic code that signals the end of a protein-coding sequence in mRNA transcription.

Messenger RNA

A molecule that carries genetic information from DNA to the ribosome, where it directs protein synthesis.