Reference no: EM133472064
Assignment:
DNA STRUCTURE
1) Write the complete name of DNA :
2) What is a gene? What is a locus?
3) Where do we ?nd chromosomes in the cell? What is a chromosome in relation to DNA?
4) DNA is found in two other organelles, which ones? What is the Endosymbiotic Theory?
5) The two scientists who discovered the structure of DNA? In what year? Who was the female scientist who really discovered it and her ideas were "borrowed" by the above 2?
6) The form/structure of DNA is called?
7) Strands of DNA are composed of what?
8) Nucleotides are composed of what?
9) What sugar is found in DNA?____________ In RNA?___________.
10) How do the bases link together? A with____________ and G with__________.
11) The two purines are (draw their chemical structure) :
12) The two pyrimidines are (draw their chemical structure) :
13) What type of bond links the base of one strand to its complement on the other strand?
14) How many of the above bonds link A to T? How many link C to G?
15) Directionality is exceptionally important when it comes to DNA. What is directionality? How do we distinguish the 3' end and the 5' ends?