Showing posts with label life themes. Show all posts
Showing posts with label life themes. Show all posts

Thursday, October 22, 2009

DNA practice

Once you've completed your DNA origami use the following sites to review what you've learned so far...

Here's an interactive game to play on making complementary base strands

Info, animations, photos on DNA structure

DNA Anatomy


interactive crossword


Tour the Basics of DNA

Journey into DNA (do the non-flash version)


Wednesday, October 21, 2009

Structure of DNA


DNA is found within the nucleus of all cells. DNA are our genes or our 'blue-print'.

DNA is a large polymer...made up of NUCELOTIDES. (take this time to review your organic macromolecules!!) Here is a sketch of a nucleotide...


The shape of DNA is a DOUBLE HELIX...which is simply just 2 strands twisted together...think of a spiraled staircase, twisted ladder or a zipper


The backbone of DNA is made up alternating of PHOSPHATE and DEOXYRIBOSE (a sugar).

The bases of DNA are: Adenine (A), Cytosine (C), Thymine (T) and Guanine (G). These are the only bases found in DNA. The bases will always, always, always pair up A-T and C-G...no ifs, ands or buts!!