10-19-11_DNAannealingreplicationB

10-19-11_DNAannealingreplicationB - Tyrell: [Tyrell...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Tyrell : [ Tyrell explains to Roy why he can't extend his lifespan ] The facts of life. .. to make an alteration in the evolvement of an organic life system is fatal. A coding sequence cannot be revised once it's been established. Batty : Why not? Tyrell : Because by the second day of incubation, any cells that have undergone reversion mutation give rise to revertant colonies, like rats leaving a sinking ship; then the ship. .. sinks. Batty : What about EMS-3 recombination? Tyrell : We've already tried it - ethyl, methane, sulfinate as an alkylating agent and potent mutagen; it created a virus so lethal the subject was dead before it even left the table. Batty : Then a repressor protein, that would block the operating cells. Tyrell : Wouldn't obstruct replication; but it does give rise to an error in replication, so that the newly formed DNA strand carries with it a mutation - and you've got a virus again. .. but this, all of this is academic. You were made as well as we could make you. Batty : But not to last. Tyrell : The light that burns twice as bright burns for half as long - and you have burned so very, very brightly, Roy. Look at you: you're the Prodigal Son; you're quite a prize! Batty : I've done. .. questionable things. Tyrell : Also extraordinary things; revel in your time - Blade Runner
Background image of page 1

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

View Full DocumentRight Arrow Icon
No office hours today Will go over CELLLS project on Friday No class on Monday
Background image of page 2
Chromosomes are long strands of DNA that are found in homologous pairs The chromosome pairs are not identical and often contain different alleles. This is the physical embodiment of information storage and transmission across generations Bacterial genomes consist of a single double stranded chromosome
Background image of page 3

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

View Full DocumentRight Arrow Icon
Crossing over in Drosophila
Background image of page 4
Unequal crossing over between chromosomes creates gene duplications and deletions Duplication and Modification of DNA Sequences is relatively common Gene duplication occurs within a portion of a single chromosome. Duplication has played a major role in the evolution of multigene
Background image of page 5

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

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/23/2012 for the course BIO 230 taught by Professor .. during the Spring '10 term at Purdue University-West Lafayette.

Page1 / 27

10-19-11_DNAannealingreplicationB - Tyrell: [Tyrell...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online