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Test your basic knowledge |
First Aid: Biochemistry Molecular
Start Test
Study First
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. Capping on 5 prime end (7 methylguanosine) -
Step one of RNA processing
Permanent cells
Cell cycle
Tumor Suppressors
2. 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)
promoter
Rough ER
Permanent cells
transition
3. Prophas - metaphase - anaphase telophase
Order of mitosis
Axonemal dyenin
Chediak Higashi syndrome
Euchromatin
4. VItamin C
tRNA activation
What does the hydroxylation of proline and lysine require
Free ribosomes
Cholchicine
5. Less condensed - transciptionally active=eu truly transcobed
Xeroderma pigmentosum
Oubain
Base excision repair
Euchromatin
6. In the nucleus after transcitpion and only processed RNA is transporte out of the nucleus
Covalent alterations
Steps in splicing
RNA processing in eukaryotes occurs
Clindamycin
7. Commonly results in dramatic decrease in amount of gene transcribed
Elastase is inhibited by
chromatin structure
Termination
Promoter mutation
8. Unattached to any membrane; site of cytosolic and organeller prtoeins
A- T
Purines
microtubule
Free ribosomes
9. Asymmetric fluid bilayer - contains - cholesterol - phospholipids - sphingoplipids - glycolipids - and protiends
Vincristine/Vinblastine
AUG codes For what in prokaryotes
Plasma membrane composition
unambiguous
10. Specific endonucleases release the oligonucleotide containing damaged bases. DNA polymerase and logase fill and resealt eh gap
Which end of the nucleotide has the triphosphate
GFAP
pyrimadines
Nucleotide excision repair
11. Brings together 2 ends of DNA fragments no requirement for homology
Non homologous end joining
Aminoacylt - tRNA synthetase
pyrimadines
Steps in splicing
12. More than 1 codon may code for the same amino acid
degenerate or redundant
Step one of RNA processing
Associations of Ehlers Danlos
Post - translational modifications
13. Inhibits by binding to the potassium side
White codon is at the 3 prime end of a tRNA
Oubain
Smooth ER
Sodium K ATPase
14. Proline - glycine
Common amino acids in elastin
Cell cycle order
transversion
Higher the cholesterol or long saturated fatty acid content
15. 2 H bonds greater GC content greater melting point
tRNA
trimethoprim
A- T
Elastin
16. Neurons - skeletal - and cardiac muscle - RBCs
microtubule
Double Strand DNA repair
Example of permanent cells
capped and tail transcript is called
17. Immotile cilia due to a dyenin arm defect. Results in male nad female inferticility (sperm immotile) - bronchiectasis - and recurrent sinusisits - associated with situs inversus
Prokaryotes
tRNA aminoacylation
nonsense
Kartageners syndrome
18. Tansport cellular cargo toward opposite ends of microtubule tracks
Molecular motor protiesn
Base excision repair
Paclitaxil
Alternate splicing
19. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA
Prokaryote RNA pol
trimethoprim
Methotrexate
transition
20. MRNA
capped and tail transcript is called
Prokaryotes
Exons
chromatin structure
21. Y shaped region along DNA template where leading and lagging strands are syntehsized
chromatin structure
Cholchicine
Eukaroytes
Replication fork
22. Inhibits thymidylate synthase down thymine
5FU
Paclitaxil
In eukaryotes the starting amino acid is...
Gag on pure gold
23. Inhibits 50S peptidyl transferase
promoter
nucleosid
Chloramphenicol
intermediate filaments
24. No proofreading function but can initiate chains. RNA poymerase II opens DNA at promoter site
Proofreading function in eukaryotic RNA
Alternate splicing
Hereditary non polyposis colorectal cancer
Enhancer
25. Methionine - which may be removed before translation is completed
the tRNA- amino acid bond
Non homologous end joining
In eukaryotes the starting amino acid is...
Clindamycin
26. Substituting a pyramidine for a pyrimadine
Sodium K ATPase
methionine is only encoded by
transition
Non homologous end joining
27. The 3 prime end
missense mutation
Step Three of RNA processing
Which end of the tRNA is the amino acid bound to?
alpha amintin
28. GTP
A- T
Smooth ER
tRNA gripping and going places
Type IV collagen is an important structural component of...
29. Bind 30S subunit preventing attachment of aminoacyl - tRNA
pyrimadines
tRNA
purines
Tetracyclines
30. Each codon specifies only 1 amino acid
unambiguous
Mebendazole/thiabendazole
DNA pol III
Aminoglycosides
31. Has enough energy to created the peptide bond
Deamination of cytosine makes
the tRNA- amino acid bond
Steps in splicing
capped and tail transcript is called
32. Nucleotide excision repair - Base Excision repair - Mismath repair
hydroxyurea
Which end of the tRNA is the amino acid bound to?
Primase
Single Strand DNA Repair types
33. Lysine/hydroxylysine and combines to form collagen
Griseofulvin
Tropocollagen cross links between_____ to form____
Sodium K ATPase
cytokeratin
34. RER translation of collagen alpha chains (preprocollagen) usually Gly-X-Y
Collagedn synthesis where?
microtubule
intermediate filaments
Proofreading function in eukaryotic RNA
35. Cilia - glagella - mitotic spindle - neurons - centrioles
microtubule
Proofreading function in eukaryotic RNA
methionine is only encoded by
Molecular motor protiesn
36. 9+2 arrangement of microtubules -
Higher the cholesterol or long saturated fatty acid content
Cilia structure
transition
Mebendazole/thiabendazole
37. Anterograde to microtubule
kinesin
Step Three of RNA processing
Tumor Suppressors
In eukaryotes the starting amino acid is...
38. The 5prime end (energy for the bond)
Prokaryotes
Which end of the nucleotide has the triphosphate
nucleosid
Free ribosomes
39. Cleave terminal regions of procollagen to transform into insoluable tropocolagen
commaless - non - overlapping
Prokaryote RNA pol
Outside the cell what processing must be done in procolalgen
What ties teh nucleosome together
40. H1 string
What ties teh nucleosome together
intermediate filaments
Elastase is inhibited by
Xeroderma pigmentosum
41. Particular sequnece in genomre where DNA replication begins. May be single (prokaryotes) or multiple (eukaryotes)
Tetracyclines
origin of replication
Guanine has a
Glycosolation
42. Site of secretory protiens (mucus secreting goblet cells and antibody secreting cells)
purines
Promoter mutation
Hereditary non polyposis colorectal cancer
Rough ER
43. 1P (blocked by tetracycline)
Loading tRNA on to ribosome energy requirement
Hydroxylation of which amino acids are attached to Glycine to form collagen
Griseofulvin
Covalent alterations
44. Uracil
Deamination of cytosine makes
mRNA stop codons
Mebendazole/thiabendazole
Plasma membrane composition
45. H1
step two of RNA processing
Promoter mutation
Prokaryote RNA pol
The only histone not on the core
46. Bm - kidney - ears and eyes
Total energy expenditure requirement for translocation
Type IV collagen is an important structural component of...
mRNA is syntehsized in which direction?
Termination
47. AD and AR- associated iwth joint dislocation - berry aneurysms - organ rupture
Permanent cells
commaless - non - overlapping
What type of collagen is most affected in Ehlers Danlos
Associations of Ehlers Danlos
48. Alpha 1 antitrypisn
Elastase is inhibited by
Excocytosis of collagen
cytokeratin
desmin
49. Faulty collagen synthesis causing 1) hyperextensible skin 2) tendency to bleed 3) hypermobile joints
single stranded binding proteinds
Cyclins
Ehlers Danlos
mRNA is syntehsized in which direction?
50. Methyl THYmine has a meTHYl
DNA pol I
Thymine has a
RNA polymerases in eukaryotes
mRNA stop codons