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Understanding the Role and Structure of RNA in Cellular Processes, Slides of Ecology and Environment

Jaypee University of Information TechnologyEcology and Environment

An overview of rna, its structure, differences with dna, and its roles in the cell as messenger rna (mrna), transfer rna (trna), and ribosomal rna (rrna).

Typology: Slides

2012/2013

Uploaded on 01/28/2013

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Download Understanding the Role and Structure of RNA in Cellular Processes and more Slides Ecology and Environment in PDF only on Docsity!

RNA acts as a messenger in the cell. It takes the information encoded in the nucleus (in the DNA) and relays it to the rest of the cell. This information will be used to create proteins.

Notice that the structure is the same, but the sugar is different.

A difference between DNA and RNA is in their bases. Three bases are identical - A,C, and G. Thymine is replaced with Uracil, similar in structure except for a CH3 group. Other differences include:

There are also 3types of RNA:

  1. Messenger RNA (mRNA)
  2. Transfer RNA (tRNA)
  3. Ribosomal RNA (rRNA) mRNA carries a copy of the DNA to the cytoplasm. Three consecutive nucleotides along the mRNA are called a

codon. Docsity.com

tRNA carries amino acids to the ribosome. It is in a looped shape with 3 bases exposed along the bottom loop. These 3 bases are

called an anticodon.

rRNA is responsible for making the ribosomes.

DNA - A T C C G A C C T A

RNA -

RNA - G G C U A U A C A U

DNA -