Genome Structure and Organisation - Statistics

General Stats
  • This quiz has been taken 14 times
  • The average score is 10 of 36
Answer Stats
Hint Answer % Correct
Which nitrogenous base is NOT found in DNA? Uracil
73%
What is the overall charge of DNA? Negative
64%
Which carbon on both ribose and deoxyribose contains a hydroxy- group? 3'
55%
Which carbon on ribose/deoxyribose bonds to a phosphate group? 5'
55%
Which kind of bond links together nitrogenous base pairs? Hydrogen
55%
What is the overall charge of a histone? Positive
55%
Which carbon on ribose/deoxyribose bonds to the nitrogenous base pairs? 1'
36%
Which process can happen to areas of dense cystine and guanine to cause inhibition of expression? Methylation
36%
Which group causes the charge in DNA? Phosphate
36%
What is the name for nitrogenous bases which have 2 rings? Purines
36%
How many histone proteins form a nucleosome? 8
27%
Which process can a histone undergo in order to tighten its interaction with DNA? Acetylation
27%
What is the name for nuclear DNA + proteins? Chromatin
27%
What are areas containing many cystine and guanine bases called? CPG island
27%
Which protein does DNA wrap around to form nucleosomes? Histone
27%
Which groove is used for transcription in DNA? Major
27%
What is affected by the looseness of chromatin around histones? Transcription
27%
How many base pairs are there roughly for each turn of DNA? 10
18%
Which amino acids cause the charge on histones? Arginine/Lysine
18%
What is the name for the structure DNA is organised into for cell replication? Chromosome
18%
What is the name for chromatin which is loosely wound around histones? Euchromatin
18%
What is the name for chromatin which is tightly wound around histones? Heterochromatin
18%
What is the effect of adding a methyl group to histones on their interaction with DNA? Loosens
18%
What is the letter representing the longer arm of a chromosome? P
18%
Which type of bond connects the 3' and 5' carbons of adjacent nucleotides? Phosphodiester
18%
What is the letter representing the shorter arm of a chromosome? Q
18%
What is the effect of adding 2-3 methyl groups to histones on their interaction with DNA? Tightens
18%
Which class of enzymes are responsible for the supercoiling of DNA? Topoisomerase
18%
What is the linker protein called? H1
9%
Which supercoiled DNA structure is formed in prokaryotes? Nucleoid
9%
What is the overall charge of the linker protein? Strongly Positive
9%
Which type of topoisomerase cleaves 1 strand of the double helix? Type 1
9%
If you wanted to unwind a supercoil, which type of topoisomerase would you use? Type 1
9%
Which type of topoisomerase cleaves both strands of the double helix? Type 2
9%
If you wanted to create a new supercoil, which type of topoisomerase would you use? Type 2
9%
What is the name for nitrogenous bases which have 1 ring? Pyridimines
0%
No matching quizzes found
Score Distribution
Percent of People with Each Score
Percentile by Number Answered
Your Score History
You have not taken this quiz