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Flashcards in final Deck (7)
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1

RNA splicing: What is it and why important

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

2

what are the differences between tRNA, mRNA and rRNA

-Rna is transcribed by rna pol I in nucleus
-mrna is transcribed by rna pol II
-tRNA is transcribed by RNA pol III

3

How do amino acids bind to tRNA

enzyme called aminoacyl-tRNA sythetase

4

how is a growing peptide chain made?

amino acids are linked by peptide bonds to form polypeptide chains

5

Direction of synthesis

-synthesis goes from right to left
- the other template goes in the opposite direction

6

what is the study of phylogenetics

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

7

why is phylogetics important

it helps us understand how genes, genomes and species evolve