Genetics

Question 1

What is the difference between proteins and dna

Answer 1

DNA is a sequence of nuclear bases that join through condensation reactions and form a polymer, proteins are a sequence of amino acids that join through condensation reactions and form a polymer

Question 2

What 3 basic components is a nucleotide made of

Answer 2

-a pentose sugar made of 5 carbon atoms
-a phosphate group
-a nitrogen containing organic base

Question 3

What is a mono-nucleotide

Answer 3

A single nucleotide containing the 3 components

Question 4

What is a dinucleotide

Answer 4

Two nucleotides joined by the sugar and phosphate group to forming phosphodiester bond

Question 5

What is a polynucleotide

Answer 5

The linking of mono and dinucleotides to form a long chain single strand molecule

Question 6

What are the two types of RNA

Answer 6

mRNA- messenger RNA
tRNA- transfer RNA

Question 7

What what are the specific base pairs in dna

Answer 7

-Adenine always links to thymine (a-t)
-guanine always links to cytosine (g-c)

Question 8

What are the 3 key points to remember about rna and dna

Answer 8

-the purpose for dna and rna as the carrying molecules of genetic information
-dna holds genetic information
-rna transfers genetic information from dna to the ribosomes where proteins are synthesised