Transcription and RNA
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Questions and Answers

What percentage of total RNA samples does mRNA typically comprise?

  • Less than 1%
  • Around 5%
  • Between 10-20%
  • 1-3% (correct)

Which enzyme is responsible for the process of transcription?

  • Ligase
  • RNA polymerase (correct)
  • DNA polymerase
  • Helicase

What type of RNA is produced when a segment of DNA can encode proteins?

  • rRNA
  • snRNA
  • tRNA
  • mRNA (correct)

What percentage of the human genome can be transcribed into mRNA?

<p>Less than 2% (B)</p> Signup and view all the answers

What is the majority of the 80% of mammalian genomic DNA that can be actively transcribed?

<p>ncRNA (C)</p> Signup and view all the answers

Study Notes

RNA Composition

  • mRNA typically comprises around 5% of total RNA samples.

Transcription Process

  • The enzyme responsible for the process of transcription is RNA polymerase.

Types of RNA

  • When a segment of DNA can encode proteins, messenger RNA (mRNA) is produced.

Human Genome

  • Only around 1-2% of the human genome can be transcribed into mRNA.

Mammalian Genomic DNA

  • The majority of the 80% of mammalian genomic DNA that can be actively transcribed is non-coding RNA, which does not code for proteins.

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Description

Test your knowledge on transcription and RNA molecules with this quiz! Learn about the different types of RNA, including messenger RNA (mRNA) and non-coding RNAs (ncRNAs). Discover fascinating facts about the percentage of mRNA in total RNA samples and the human genome.

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