theme 2 quiz questions

Question 1

Which amino acid provides a positive charge for histones:

Answer 1

Arginine

Question 2

What is the name of the chemical modification that tags a protein for degradation in the proteasome?

Answer 2

Ubiquitination

Question 3

Which chemical modification that alters DNA bases to block gene transcription?

Answer 3

Methylation

Question 4

What is the enzyme which is critical for effective mRNA translation?

Answer 4

Aminoacyl tRNA synthetase

Question 5

What Amino acid always appears first in a newly synthesised protein?

Answer 5

Methionine

Question 6

Which amino acid is unique to collagen?

Answer 6

Hydroxyproline

Question 7

What molecular structure can causes dissociation of histone-DNA complexes?

Answer 7

Acetylated lysine

Question 8

What amino acid which is the precursor of the hormone thyroxine?

Answer 8

Tyrosine

Question 9

What is the name of enzyme which is often activated in response to growth factor signalling

Answer 9

Tyrosine kinase

Question 10

Which amino acid simply has hydrogen as the ‘R’ group?

Answer 10

Glycine

Question 11

Which amino acid simply has methyl as the ‘R’ group?

Answer 11

Alanine