{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

29 Oct 07 - An Introduction to Translation In translation...

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
An Introduction to Translation In translation , the sequence of bases in the mRNA is converted to an amino acid sequence in a protein.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
5’ TTATAA 3’ By convention, DNA and RNA sequences (except anticodons) are written from left to right in the 5’ to 3’ direction. Which, if any, of the sequences below is/are complementary to A.TTATAA A.UUAUAA A.AATATT A.Both A and B could be correct A.None of the above
Background image of page 2
Ribosomes Are the Site of Protein Synthesis Ribosomes catalyze translation of the mRNA sequence into protein.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
In bacteria, ribosomes begin to translate mRNA before RNA polymerase has even finished transcribing it.
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
In eukaryotes, mRNAs are synthesized and processed in the nucleus and transported to the cytoplasm for translation by ribosomes.
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
How Does an mRNA Triplet Specify an Amino Acid?
Background image of page 8
How Does an mRNA Triplet Specify an Amino Acid? Francis Crick's adapter-molecule hypothesis predicted that translation required “adapter molecules” that interacted with specific mRNA codons held amino acids in place.
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 10
The Role of Transfer RNA The adapter molecule is a small RNA called transfer RNA (tRNA) .
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 12
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}