Basics

Question 1

What is a Nucleotide

Answer 1

molecule that consists of a deoxyribose sugar, nitrogenous base and a phosphate group

Question 2

What is a purines and pyrimidines

Answer 2

purines are double rings such as Adenineand Guanine and pyramidines are Cytosine and Thymine

Question 3

what is a phosphodiester bond

Answer 3

a bond that happens between the phosphate group of one nucleotide and the deoxyribose sugar of another nucleotide

Question 4

what is complementary base pairng

Answer 4

its Adenine always pairing with Thymine
and Guanine always pairing with Cytosine

Question 5

Double helix formation

Answer 5

two single strands of DNA join through the creation of H bonds between base pairs, the two strands create a ladder with alternating sugars and phosphates as the sides of the ladder and the H bonded base pairs as the rungs of the ladder. two strands then coil creating helix

key notes:
Two strands are antiparallel