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Test your basic knowledge |
First Aid: Biochemistry Molecular
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Subjects
:
health-sciences
,
first-aid
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Unattached to any membrane; site of cytosolic and organeller prtoeins
Free ribosomes
Stable (quiescent)
Replication fork
White codon is at the 3 prime end of a tRNA
2. Bm - kidney - ears and eyes
Permanent cells
frame shift
Type IV collagen is an important structural component of...
Griseofulvin
3. Made from IMP precursor
Fluoroquinolones
Exons
Elastase is inhibited by
purines
4. Prokaryotic only. Degrades RNA primer and fills in the gap with DNA (5 prime to 3 prime exonuclease)
Paclitaxil
Silencer
DNA pol I
Heterochromatin
5. Base+ribose+phosphate linked by a phosphodiester bond
Covalent alterations
RNA processing in eukaryotes occurs
nucleotide
Example of permanent cells
6. Hn RNA
missense mutation
Prokaryote RNA pol
transversion
Initial transcript without processing is known as
7. Base + ribose
Prokaryote RNA pol
Outside the cell what processing must be done in procolalgen
Nucleotide excision repair
nucleosid
8. Odd 30S plus 50 S=70S
Digoxin (cardiac glycosides)
Functional organization of the gene
Rough ER
Prokaryotes
9. Greater melting temperature lower fluidity
Higher the cholesterol or long saturated fatty acid content
What does the hydroxylation of proline and lysine require
histone octamer names
Proteosomal degradation
10. Three amino acids necessary for purine synthesis= glutamine - aspartate and glycine
Silencer
Which end of a growing DNA strand is the target
Base excision repair
Gag on pure gold
11. Site where RNA polymerase and multiple other transciption factors bind to DNA upstream from gene locus (AT rich upstream sequence with TATA and CAAT boxes)
Single Strand DNA Repair types
Free ribosomes
Tetracyclines
promoter
12. Antifungal - act on microtubules
nonsense
CDKs
Griseofulvin
Smooth ER
13. Checkpoints control transition between phases of cell cycle. regulated by cyclins - CDKs and tumor suppressors. Mitosis (shortest phse)
Cell cycle order
Chediak Higashi syndrome
transition
Cell cycle
14. Does not
polyadenylation does/does not require a template
Labile
kinesin
step two of RNA processing
15. Inhibits dihydrofolate reductase down thymine
tRNA gripping and going places
actin and myosin
Methotrexate
tRNA Structure
16. Inhbits RNA pol II (found in death cap mushrooms)
What type of collagen is most affected in Ehlers Danlos
Elastase is inhibited by
Silencer
alpha amintin
17. Capping on 5 prime end (7 methylguanosine) -
Cholchicine
Total energy expenditure requirement for translocation
Step one of RNA processing
silent mutation
18. Close to - far from or even within (in an intron) the gene whose expression it regulates
Gag on pure gold
DNA/RNA/Protein syntesis direction
purines
Enhancers and silencer may be located_____
19. Methionine - which may be removed before translation is completed
Termination
Initial transcript without processing is known as
In eukaryotes the starting amino acid is...
dyenin
20. Retrograde to microtubules
Post - translational modifications
Silencer
dyenin
DNA/RNA/Protein syntesis direction
21. Connective tissue
Immunohistochemical stains vimentin
Loading tRNA on to ribosome energy requirement
actin and myosin
silent mutation
22. In the nucleus after transcitpion and only processed RNA is transporte out of the nucleus
RNA processing in eukaryotes occurs
What ties teh nucleosome together
Double Strand DNA repair
nucleosid
23. AD and AR- associated iwth joint dislocation - berry aneurysms - organ rupture
Associations of Ehlers Danlos
degenerate or redundant
Order of mitosis
Total energy expenditure requirement for translocation
24. Introns stay In the nucleus whereas EXons EXit and are EXpressed
tRNA Structure
Step one of RNA processing
tRNA gripping and going places
Where do introns and exons stay
25. Specific endonucleases release the oligonucleotide containing damaged bases. DNA polymerase and logase fill and resealt eh gap
Nucleotide excision repair
mRNA start codons
RNA processing in eukaryotes occurs
The only histone not on the core
26. CCA AT 3 PRIME END
White codon is at the 3 prime end of a tRNA
tRNA gripping and going places
What does the hydroxylation of proline and lysine require
transition
27. One codon AUG
Cyclins
chromatin structure
Post - translational modifications
methionine is only encoded by
28. Cyclin depndent kinases; consituative and inactive
Going APE
DNA topoisomerases
purines
CDKs
29. Hydroxy proline and hydroxylysine
histone octamer names
silent mutation
degenerate or redundant
Hydroxylation of which amino acids are attached to Glycine to form collagen
30. Prokaryotic only. Elongates leading strand by adding deoxynucleotides to the 3prime end. Elongates laggin strand. 3 prime to 5 prime exonuclease activity
Osteogenesis Imperfecta
5FU
DNA pol III
missense mutation
31. Non homologous end joining
Type IV collagen is an important structural component of...
Primase
Collagen
Double Strand DNA repair
32. The 3 prime hydroxyl of the nascent chain is the target
Which end of a growing DNA strand is the target
Introns
Cyclins
Cell cycle
33. Poly adenylation
Single Strand DNA Repair types
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
step two of RNA processing
silent mutation
34. Proline - glycine
Fluoroquinolones
Cholchicine
Common amino acids in elastin
Mebendazole/thiabendazole
35. Methyl THYmine has a meTHYl
Deamination of cytosine makes
Thymine has a
Pyrimidines
Smooth ER
36. Brings together 2 ends of DNA fragments no requirement for homology
Non homologous end joining
alpha amintin
pyrimadines
Aminoglycosides
37. Faulty collagen synthesis causing 1) hyperextensible skin 2) tendency to bleed 3) hypermobile joints
Excocytosis of collagen
transversion
Ehlers Danlos
Order of mitosis
38. Condensed - transciptionally inactive HC- Highly condensed
Heterochromatin
DNA topoisomerases
pyrimadines
mRNA start codons
39. 3 H bonds
Which is the most and least abundant type of RNA
Post - translational modifications
C- G bond
alpha amintin
40. ATP ase that links peripheral 9 doublets and causes bending of cilium by differential sliding of doublets
Elastin
DNA/RNA/Protein syntesis direction
C- G bond
Axonemal dyenin
41. Inhibit formation of the initation complex and cause misreading of mRNA
Ribonucleotides are synthesized first and convertec to deoxyribonuclotides by
Cyclins
Aminoglycosides
Translocation
42. Nucleotide excision repair - Base Excision repair - Mismath repair
DNA topoisomerases
What does the hydroxylation of proline and lysine require
Single Strand DNA Repair types
Osteogenesis Imperfecta
43. Microtubule polymerization defect resulting in lowered phagocytosis. results in recurrent pyogenic infections - partial albinism and peripheral neuropathy
Chediak Higashi syndrome
Introns
Single Strand DNA Repair types
Collagen
44. Attachment of ubiquitin to defective proteinds to tag them for breakdown
pyrimadines
Chloramphenicol
Collagedn synthesis where?
Proteosomal degradation
45. Makes an RNA primer on which DNA polymerase II can initiate replication
Primase
What does the hydroxylation of proline and lysine require
methionine is only encoded by
Eukaroytes
46. HS1 - HSB - H2 - H4
Silencer
Functional organization of the gene
transition
histone octamer names
47. Stretch of DNA that alters gene expression by binding transcription factors
AUG codes For what in prokaryotes
Outside the cell what processing must be done in procolalgen
methionine is only encoded by
Enhancer
48. Remain in G0 regenerate from stem cells
Permanent cells
Osteogenesis Imperfecta
Plasma membrane composition
Chloramphenicol
49. Intervening noncoding segments of DNA
tRNA
Termination
Introns
Rough ER
50. Immotile cilia due to a dyenin arm defect. Results in male nad female inferticility (sperm immotile) - bronchiectasis - and recurrent sinusisits - associated with situs inversus
Double Strand DNA repair
Kartageners syndrome
The only histone not on the core
Non homologous end joining
Sorry!:) No result found.
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