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Flashcards in final Deck (7)
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1
Q

RNA splicing: What is it and why important

A
  • Removes noncoding introns from pre-mRNA
  • facilitates export of mRNA to cytoplasm
  • allows for multiple proteins to be produced through alternative splicing
2
Q

what are the differences between tRNA, mRNA and rRNA

A
  • Rna is transcribed by rna pol I in nucleus
  • mrna is transcribed by rna pol II
  • tRNA is transcribed by RNA pol III
3
Q

How do amino acids bind to tRNA

A

enzyme called aminoacyl-tRNA sythetase

4
Q

how is a growing peptide chain made?

A

amino acids are linked by peptide bonds to form polypeptide chains

5
Q

Direction of synthesis

A
  • synthesis goes from right to left

- the other template goes in the opposite direction

6
Q

what is the study of phylogenetics

A

study of evolutionary history and relationships among individuals or groups of organisms

7
Q

why is phylogetics important

A

it helps us understand how genes, genomes and species evolve