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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%
|
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