General Biology I

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RNAs

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General Biology I

Definition

RNAs (ribonucleic acids) are essential molecules in the process of converting genetic information from DNA into proteins. They play diverse roles such as coding, decoding, regulation, and expression of genes.

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5 Must Know Facts For Your Next Test

  1. Messenger RNA (mRNA) carries genetic information from DNA to ribosomes for protein synthesis.
  2. Transfer RNA (tRNA) helps decode mRNA sequences into amino acids during translation.
  3. Ribosomal RNA (rRNA) is a component of ribosomes and aids in protein synthesis.
  4. Small nuclear RNAs (snRNAs) are involved in splicing pre-mRNA in the nucleus.
  5. MicroRNAs (miRNAs) regulate gene expression by binding to complementary sequences on target mRNAs.

Review Questions

  • What role does mRNA play in protein synthesis?
  • How do tRNAs contribute to the translation process?
  • Name two types of RNAs involved in gene regulation.

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