Transcription Molecular Biology

Front

What sequence in DNA signals RNA polymerase where to start transcription?

Back

Promoter

Front

What is the function of the TATA box in eukaryotic transcription initiation?

Back

It helps recruit transcription factors to the promoter.

Front

What is the role of the sigma factor in bacterial transcription?

Back

It helps RNA polymerase bind to the promoter.

Front

What does the central dogma of molecular biology describe?

Back

The flow of genetic information from DNA to RNA to protein.

Front

In prokaryotes, where do transcription and translation occur?

Back

In the cytoplasm.

Front

What is the primary enzyme responsible for synthesizing RNA during transcription?

Back

RNA polymerase.

Front

What are the three main stages of transcription?

Back

Initiation, elongation, and termination.

Front

What is the difference between prokaryotic and eukaryotic transcription?

Back

Prokaryotic transcription occurs in the cytoplasm and does not involve RNA processing, while eukaryotic transcription occurs in the nucleus and involves RNA processing.

Front

What is the role of transcription factors in eukaryotic transcription?

Back

They help regulate the transcription of specific genes by binding to nearby DNA.

Front

What is the significance of the 5' cap and poly-A tail in eukaryotic mRNA?

Back

They protect mRNA from degradation and assist in ribosome binding during translation.