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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. CUT 1 ring Cut the Py
Single Strand DNA Repair types
Pyrimidines
Macrolides
DNA ligase
2. Specific endonucleases release the oligonucleotide containing damaged bases. DNA polymerase and logase fill and resealt eh gap
Nucleotide excision repair
microtubule
silent mutation
CDKs
3. ATP- AMP (2 phosphoanhydride bonds)
tRNA aminoacylation
mRNA stop codons
origin of replication
microtubule
4. Inhibits by binding to the potassium side
alpha amintin
unambiguous
Termination
Oubain
5. Be So Totatally Cool Read Books (bOne - CarTWOlage - Threeticular - Type IV under the floor)
Chediak Higashi syndrome
Collagen
dyenin
Which is the most and least abundant type of RNA
6. Completed protein is released from ribosme through simple hydrolosis and dissociates
Chloramphenicol
Termination
capped and tail transcript is called
Elastase is inhibited by
7. Neurons
Collagedn synthesis where?
Neurofilaments
kinesin
Fluoroquinolones
8. Bind 30S subunit preventing attachment of aminoacyl - tRNA
Proteosomal degradation
Tetracyclines
Ehlers Danlos
methionine is only encoded by
9. Responsible for the accuracy of amino acid selection
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
Termination
Cilia structure
Heterochromatin
10. Faulty collagen synthesis causing 1) hyperextensible skin 2) tendency to bleed 3) hypermobile joints
Ehlers Danlos
Steps in splicing
Prokaryote RNA pol
Proofreading function in eukaryotic RNA
11. 2 H bonds greater GC content greater melting point
A- T
transversion
RNA processing in eukaryotes occurs
In eukaryotes the starting amino acid is...
12. Does not
Stable (quiescent)
What type of collagen is most affected in Ehlers Danlos
Sodium K ATPase
polyadenylation does/does not require a template
13. Create a nick in the helix to relieve supercoils created during replication
DNA ligase
DNA topoisomerases
Labile
purines
14. The 3 prime hydroxyl of the nascent chain is the target
Which end of a growing DNA strand is the target
dyenin
Macrolides
Termination
15. Same aa often base change in 3rd position of codon
GFAP
Tumor Suppressors
silent mutation
C- G bond
16. Accurate base pairing is required only in the first 2 nucleotide positions of an mRNA so codons differing ht e3rd wobble psoition may code for the same tRNA/amino acid code
Xeroderma pigmentosum
Which is the most and least abundant type of RNA
tRNA
C- G bond
17. Asymmetric fluid bilayer - contains - cholesterol - phospholipids - sphingoplipids - glycolipids - and protiends
Plasma membrane composition
desmin
Aminoacylt - tRNA synthetase
Step one of RNA processing
18. Non homologous end joining
Tropocollagen cross links between_____ to form____
Double Strand DNA repair
RNA polymerases in eukaryotes
Prokaryote RNA pol
19. 3 H bonds
Neurofilaments
Molecular motor protiesn
C- G bond
Euchromatin
20. In the nucleus after transcitpion and only processed RNA is transporte out of the nucleus
RNA processing in eukaryotes occurs
silent mutation
intermediate filaments
tRNA gripping and going places
21. Muscle
universal
Where do introns and exons stay
desmin
tRNA gripping and going places
22. Site where negative regulators bind
tRNA Structure
Single Strand DNA Repair types
intermediate filaments
Silencer
23. Brings together 2 ends of DNA fragments no requirement for homology
Non homologous end joining
nucleotide
Chloramphenicol
actin and myosin
24. Prophas - metaphase - anaphase telophase
DNA topoisomerases
Chediak Higashi syndrome
Proteosomal degradation
Order of mitosis
25. Prokaryotic only. Degrades RNA primer and fills in the gap with DNA (5 prime to 3 prime exonuclease)
Purines
What ties teh nucleosome together
Mismatch repair
DNA pol I
26. ATP ase that links peripheral 9 doublets and causes bending of cilium by differential sliding of doublets
origin of replication
Elastase is inhibited by
Neurofilaments
Axonemal dyenin
27. Microvilli - muscle contraction - cytokinesis - adhering juntions
actin and myosin
Cell cycle
capped and tail transcript is called
Exons
28. Uracil
nonsense
Ehlers Danlos
Deamination of cytosine makes
Covalent alterations
29. Must be both activated and inactivated for cell cycle to progress
Common amino acids in elastin
Immunohistochemical stains vimentin
Cyclin - CDK
DNA ligase
30. AD and AR- associated iwth joint dislocation - berry aneurysms - organ rupture
Collagen
transversion
Associations of Ehlers Danlos
DNA/RNA/Protein syntesis direction
31. Inhbits RNA pol II (found in death cap mushrooms)
Guanine has a
alpha amintin
tRNA
RNA polymerases in eukaryotes
32. Intervening noncoding segments of DNA
Clindamycin
Introns
Vincristine/Vinblastine
tRNA aminoacylation
33. The 5prime end (energy for the bond)
Hydroxylation of which amino acids are attached to Glycine to form collagen
Fluoroquinolones
Which end of the nucleotide has the triphosphate
methionine is only encoded by
34. Remain in G0 regenerate from stem cells
Permanent cells
Cell cycle order
Digoxin (cardiac glycosides)
Nucleotide excision repair
35. 4 high enrgy bonds
DNA/RNA/Protein syntesis direction
Axonemal dyenin
Total energy expenditure requirement for translocation
Nucleotide excision repair
36. Attachment of ubiquitin to defective proteinds to tag them for breakdown
Replication fork
Collagen
Proteosomal degradation
DNA pol III
37. Introns stay In the nucleus whereas EXons EXit and are EXpressed
Where do introns and exons stay
Double Strand DNA repair
methionine is only encoded by
Axonemal dyenin
38. Made from orogate precuror with PRPP added later
pyrimadines
frame shift
Functional organization of the gene
Mebendazole/thiabendazole
39. Anterograde to microtubule
alpha amintin
capped and tail transcript is called
kinesin
actin and myosin
40. Methyl THYmine has a meTHYl
DNA topoisomerases
Step one of RNA processing
What ties teh nucleosome together
Thymine has a
41. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle
Glycosolation
Sodium K ATPase
Plasma membrane composition
Deamination of cytosine makes
42. Antigout - acts on mts
Cholchicine
What does the hydroxylation of proline and lysine require
Elastin
What ties teh nucleosome together
43. Activated by GTP hydrolosis initiation factors help assembel the 40 S ribosomal subunites with the initiatior tRNA and are released whent he mRNA and the ribosomal subunit assemple with the complex
Ribonucleotides are synthesized first and convertec to deoxyribonuclotides by
Xeroderma pigmentosum
Protein synthesis initiation
5FU
44. Stretch of DNA that alters gene expression by binding transcription factors
DNA pol III
C- G bond
Enhancer
tRNA activation
45. ATP
Cholchicine
tRNA activation
capped and tail transcript is called
Common amino acids in elastin
46. Mutation in nucleotide excision repair Dry skin with melanoma and other cancers
Rough ER
DNA pol III
actin and myosin
Xeroderma pigmentosum
47. Tansport cellular cargo toward opposite ends of microtubule tracks
chromatin structure
Digoxin (cardiac glycosides)
Ehlers Danlos
Molecular motor protiesn
48. Bind 50S blocking translocation
nucleosid
Alternate splicing
Macrolides
DNA topoisomerases
49. Prokaryotic only. Elongates leading strand by adding deoxynucleotides to the 3prime end. Elongates laggin strand. 3 prime to 5 prime exonuclease activity
capped and tail transcript is called
Where do introns and exons stay
DNA pol III
degenerate or redundant
50. You glyucosolate hte pro - alpha chain lysine resudens and form procollagen (triple helix of alpha chains)
The only histone not on the core
microtubule
Glycosolation
Rough ER