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Introns and Exons - Environment and Ecology - Lecture Slides, Slides of Ecology and Environment
Some lectures on Environment and Ecology topics are here. Key points from this lecture slides are: Introns and Exons, Nucleotides, Translation, Amino Acid, Introns Removed, Hemoglobin, Transcription, Nucleotides, Sequence Contains, Translation
Typology: Slides
2012/2013
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- When mRNA is transcribed it contains many nucleotides not needed in translation
- Certain sequences that do not code for part of the amino acid chain must be removed ( INTRONS )
INTRONS EXONS
TRANSLATION
INTRONS REMOVED
EXAMPLE:
- hemoglobin contains 144 amino acids
- 432 nucleotides required
- after transcription the mRNA sequence contains 1356 nucleotides