DNA Transcription.

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Presentation transcript:

DNA Transcription

Learning Objectives Explain how DNA is transcribed into RNA Compare and contrast DNA replication and DNA transcription

Central Dogma DNA Transcription RNA Translation Protein (Nucleus) (Cytoplasm) DNA Transcription RNA Translation Protein

Proteins Make Traits (Don’t Write, Just Listen) DNA RNA Protein Trait Transcription Translation Structural proteins Physical Traits Enzymatic proteins Metabolic Traits Hormonal proteins Control of Growth and Development One gene is a segment of DNA

Purpose of DNA Transcription mRNA Transcript To make messenger RNA (mRNA) from a DNA template

Where Does Transcription Occur? DNA transcription occurs in the nucleus

Parts of the Transcription Machinery Free Nucleotides RNA Polymerase DNA Template

Difference between DNA Replication and DNA Transcription DNA replication copies the whole DNA strand Creates two identical copies Uses thymine (T) DNA transcription copies small sections (genes) Creates one single strand (mRNA) Uses uracil (U)

YouTube Video DNA Transcription in Real Time

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