Basic Proteins

Question 1

What is the first level of information in the cell?

Answer 1

The genome

Question 2

The majority of the genome has no known function. T/F?

Answer 2

False

Question 3

What is the second level of information in the cell?

Answer 3

The transcriptome

Question 4

What is the third, and final, level of information in the cell?

Answer 4

Proteome

Question 5

Why are there only 20 amino acids in the human body when there are 61 different codons?

Answer 5

Because there is degeneracy in the code - some codons code for the same amino acid

Question 6

What is the UTR and where does it exist?

Answer 6

The UTR is the untranslated region of the RNA which exists on either side of the mRNA sequence.

Question 7

What is the purpose of the UTR wt the 3’ end of the mRNA sequence?

Answer 7

It is thought to add stability of the RNA

Question 8

What is the Kozak sequence and what does it do?

Answer 8

The Kozak sequence is part of the 5’ UTR sequence and tells the ribosome that the next methionine codon is the START codon.

Question 9

What is the purpose of disulphide bonds in the structure of proteins?

Answer 9

The acts to clip the protein structure together and so provide stability