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Questions and Answers

What is the primary function of chromatin remodeling in gene expression?

To decondense chromatin structure for transcriptional activation (correct)

To condense chromatin structure for gene silencing

To modify histone proteins for transcriptional repression

To methylate DNA for post-transcriptional regulation

What is the purpose of DNA methylation in chromatin remodeling?

To add acetyl groups to histone proteins

To remove methyl groups from cytosines

To add methyl groups to cytosines (correct)

To phosphorylate histone proteins

What is the name of the enzyme used in the experiment by Weintraub and Groudine?

Helicase

Ligase

Polymerase

DNase (correct)

What is the name of the complex formed by DNA and histone proteins?

Nucleosome Signup and view all the answers

What is the main reason why chromatin remodeling is necessary for gene expression?

To allow RNA polymerase to access the promoter Signup and view all the answers

How does chromatin remodeling control gene expression?

By decondensing chromatin to activate genes Signup and view all the answers

What is the role of the template strand during transcription?

Provide a complementary sequence for RNA synthesis Signup and view all the answers

What is the primary function of RNA in the cell?

Encode proteins Signup and view all the answers

During transcription, which direction is always followed by the RNA polymerase along the DNA strand?

5-3' Signup and view all the answers

In the context of transcription, what is the function of the non-template strand of DNA?

Encoding proteins directly Signup and view all the answers

What process directly follows transcription in the central dogma of molecular biology?

Translation Signup and view all the answers

Which step concludes the 4-step process of bacterial transcription, according to the text?

Chain termination Signup and view all the answers

Where does RNA polymerase bind during transcription initiation?

Double-stranded DNA sequence Signup and view all the answers

What occurs during chain elongation in transcription?

Second round of transcription starts Signup and view all the answers

Where is the promoter located relative to the start of transcription?

Immediately upstream (5’) Signup and view all the answers

What is the function of the termination region in gene structure?

Regulates cessation of transcription Signup and view all the answers

Which post-transcriptional process involves protecting mRNA from rapid degradation?

5’ capping Signup and view all the answers

What is the main role of the coding region in a gene?

Contain information for protein synthesis Signup and view all the answers