DNA

Question 1

What are the two types of nucleic acid?

Answer 1

Deoxyribose nucleic acid (DNA)
Ribonucleic acid (RNA)

Question 2

What is the structure of nucleotides?

Answer 2

Condensation reactions like the Penrose sugar, phosphate group and organic nitrogenous base components together via covalent bonds.
The phosphate links neighbourhood sugars together to form a sugar phosphate backbone.
Many nucleotides join to form nucleic acid

Question 3

What are the 2 classifications of bases?

Answer 3

Pyrimadines, 1 ring: cytosine, thymine and uracil
Purine, 2 rings: adenine, guanine

Question 4

How many bonds to each complementary base pairings have?

Answer 4

GC = 3 bonds
A-C/T=2 bonds

Question 5

What is the function of DNA?

Answer 5

The sequence of bases in DNA codes for the sequence of amino acids in the polypeptide chain that determines the shape and function of the protein.
Therefore they determine all ciharacterteristics of an organism.
Enzymes are proteins
Involved in cell division, replicated to make new cell.
RNA used in protein synthesis

Question 6

What are differences between DNA and RNA polymer

Answer 6

DNA: very large, double helix, in nucleus
RNA: much shorter, single strand or double helix, in nucleus + cytoplasm