Unit05-Biotechnology

[] -transcription and translation -Taryn

   

http://www.accessexcellence.org/RC/AB/BC/what_is_biotechnology.php What is biotechnology?

http://www.utpa.edu/faculty/materon/3401/mainimages/biotechnology.gif

Pretty Helpful media type="youtube" key="teV62zrm2P0" height="344" width="425"

DNA replicates itself (makes a copy of itself) semiconservatively. Picture on page 312 The steps of DNA replication: 1. unwind DNA-helicase enzyme unwinds part of DNA breaking Hydrogen bonds-stabilizing proteins make it stay when the origins of replication touch each other-replication is over the more origins of replication-the faster replication is 2. nucleotides match up with original ones (they bring their own energy)

DNA structure and how it makes up a chromosome []

The process of DNA replication []

Morgan-figured out genes are located on chromosomes Griffith-figured out that genetic material can be transferred from organism to organism Avery-figured out that DNA is the transforming factor Hershey and Chase-confirmed Avery Chargaff-DNA composition--- A-equal to T T-equal to A G-equal to C C-equal to G have to all add up to 100 Watson and Crick-structure of DNA -DNA is able to copy itself

Base pairing in DNA Purine-two rings (Adenine and Guanine) Pyrimadines-one ring (Thymine and Cytosine) Pairing: A:T or C:G

DNA is anti parallel which means that the helix sides go in different directions so one ends with Carbon number 5 and starts with Carbon 3--while the other one ends with Carbon three and starts with Carbon 5

DNA has two bonds: phosphodiester bonds-strong-hold sugar and phospahte hydrogen bonds-weak-nitrogenous base to nitrogenous base

Sugar+Nitrogenous base+Phosphate=nucleotide nucleotide+nucleotide=nucleic acid

Phosphate is between Carbon 3 and 5 when nucleotides attach to each other

Pretty interesting video about telomeres []