DNA

Question 1

describe and draw the structure of a nucleotide

Answer 1

cotains a 2-deoxyribose molecule covalently bonded to a phosphate ion and one of four bases. they link together to form a strand when a phosphate ion bonds to the deoxyribose molecule of another nucleotide via a phosphodiester bond

Question 2

what does 5’ and 3’ end mean?

Answer 2

refers to the number of Carbon atom in the 2-deoxyribose sugar where the phosphate are bonded

Question 3

show how there nucleotides and phosphate groups react to form the sugar-phosphate backbone

Answer 3

Question 4

identify the N atoms on the bases that bond to the 2-deoxyribose of nucleotides

Answer 4

Question 5

label the diagram to show the H bonds formed between A and T

Answer 5

Question 6

show how the H bonds form between C and G

Answer 6

Question 7

structure of DNA

Answer 7

consists of two complementary strands that run in opposite directions (antiparallel). complementary base pairs have H bonds between them