SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. Condensed - transciptionally inactive HC- Highly condensed
Total energy expenditure requirement for translocation
Heterochromatin
pyrimadines
Double Strand DNA repair
2. Codes for formyl methionine (f - Met)
methionine is only encoded by
AUG codes For what in prokaryotes
missense mutation
silent mutation
3. Close to - far from or even within (in an intron) the gene whose expression it regulates
Enhancers and silencer may be located_____
Translocation
DNA pol III
cytokeratin
4. P53 and RB normally inhibit g1 to S progression
DNA/RNA/Protein syntesis direction
Excocytosis of collagen
Tumor Suppressors
tRNA gripping and going places
5. Does not
polyadenylation does/does not require a template
Mebendazole/thiabendazole
Axonemal dyenin
cytokeratin
6. Epithelial cells
What does the hydroxylation of proline and lysine require
Base excision repair
hydroxyurea
cytokeratin
7. The 3 prime end
Loading tRNA on to ribosome energy requirement
What type of collagen is most affected in Ehlers Danlos
actin and myosin
Which end of the tRNA is the amino acid bound to?
8. VItamin C
Exons
What does the hydroxylation of proline and lysine require
Which is the most and least abundant type of RNA
Chediak Higashi syndrome
9. Bind 30S subunit preventing attachment of aminoacyl - tRNA
Translocation
Single Strand DNA Repair types
commaless - non - overlapping
Tetracyclines
10. Elastase
Prokaryotes
Protein synthesis is in which direction
Elastin is broken down by
Kartageners syndrome
11. Microtubule polymerization defect resulting in lowered phagocytosis. results in recurrent pyogenic infections - partial albinism and peripheral neuropathy
Chediak Higashi syndrome
Mebendazole/thiabendazole
Non homologous end joining
Steps in splicing
12. Cyclin depndent kinases; consituative and inactive
CDKs
Kartageners syndrome
Digoxin (cardiac glycosides)
Post - translational modifications
13. Site where negative regulators bind
Oubain
Cell cycle
Axonemal dyenin
Silencer
14. 9+2 arrangement of microtubules -
hydroxyurea
DNA/RNA/Protein syntesis direction
Cilia structure
Hydroxylation of which amino acids are attached to Glycine to form collagen
15. Inhibits by binding to the potassium side
Oubain
Thymine has a
Step one of RNA processing
Stable (quiescent)
16. Inhbits RNA pol II (found in death cap mushrooms)
Osteogenesis Imperfecta
Single Strand DNA Repair types
Tropocollagen cross links between_____ to form____
alpha amintin
17. 1) primary transcript combines with snRNPs and other proteins to form spliceosome 2) lariat shaped intermediate is generated 3) Lariat is removed and released to precisely join 2 exons
Exons
Protein synthesis is in which direction
Steps in splicing
Base excision repair
18. Inhibit DNA gyrase (specific prokaryotic topoisomerase)
Which is the most and least abundant type of RNA
Cholchicine
Fluoroquinolones
GFAP
19. Site of dteroid synthesis and detoxification of druigs and poisons (liver hepatocytes and steroid horomore adrenal cortex)
Pyrimidines
Heterochromatin
Osteogenesis Imperfecta
Smooth ER
20. Attachment of ubiquitin to defective proteinds to tag them for breakdown
Thymine has a
Base excision repair
Proteosomal degradation
mRNA stop codons
21. Regulatory proteins that control cell cycle events; phase specific; activated CDKs
Protein synthesis initiation
Elastase is inhibited by
Enhancers and silencer may be located_____
Cyclins
22. One codon AUG
tRNA
methionine is only encoded by
Molecular motor protiesn
DNA ligase
23. Inhibits 50S peptidyl transferase
methionine is only encoded by
Chloramphenicol
Chediak Higashi syndrome
What ties teh nucleosome together
24. In the nucleus after transcitpion and only processed RNA is transporte out of the nucleus
Griseofulvin
Tetracyclines
Heterochromatin
RNA processing in eukaryotes occurs
25. Particular sequnece in genomre where DNA replication begins. May be single (prokaryotes) or multiple (eukaryotes)
intermediate filaments
Clindamycin
origin of replication
Thymine has a
26. Proline - glycine
polyadenylation does/does not require a template
Digoxin (cardiac glycosides)
Common amino acids in elastin
Initial transcript without processing is known as
27. (A - G) 2 rings Pure As Gold
tRNA activation
Prokaryotes
Purines
tRNA gripping and going places
28. RER translation of collagen alpha chains (preprocollagen) usually Gly-X-Y
Glycosolation
pyrimadines
Collagedn synthesis where?
nucleosid
29. Same aa often base change in 3rd position of codon
Molecular motor protiesn
mRNA is syntehsized in which direction?
RNA polymerases in eukaryotes
silent mutation
30. GTP
tRNA gripping and going places
Functional organization of the gene
Example of permanent cells
Alports syndrome
31. You glyucosolate hte pro - alpha chain lysine resudens and form procollagen (triple helix of alpha chains)
Promoter mutation
Glycosolation
actin and myosin
Smooth ER
32. Different exons can be combined to make nique protiens in different times
Xeroderma pigmentosum
hydroxyurea
transition
Alternate splicing
33. Specific endonucleases release the oligonucleotide containing damaged bases. DNA polymerase and logase fill and resealt eh gap
Molecular motor protiesn
Nucleotide excision repair
tRNA aminoacylation
GFAP
34. CCA AT 3 PRIME END
Cell cycle order
Which end of a growing DNA strand is the target
nucleotide
White codon is at the 3 prime end of a tRNA
35. ATP ase that links peripheral 9 doublets and causes bending of cilium by differential sliding of doublets
Axonemal dyenin
nucleotide
DNA pol I
Griseofulvin
36. More than 1 codon may code for the same amino acid
Deamination of cytosine makes
degenerate or redundant
Outside the cell what processing must be done in procolalgen
Fluoroquinolones
37. Makes an RNA primer on which DNA polymerase II can initiate replication
Oubain
Primase
Introns
polyadenylation does/does not require a template
38. H1
The only histone not on the core
Replication fork
Elastase is inhibited by
Common amino acids in elastin
39. Substituting a pyramidine for a pyrimadine
mRNA start codons
Cholchicine
Ehlers Danlos
transition
40. Negatively charged DNA loops twice around histone octamers create a nucloesome bead.
mRNA start codons
chromatin structure
tRNA Structure
Higher the cholesterol or long saturated fatty acid content
41. Each codon specifies only 1 amino acid
alpha amintin
Example of permanent cells
Single Strand DNA Repair types
unambiguous
42. Anit helminth - act on microtubules
A- T
desmin
Protein synthesis is in which direction
Mebendazole/thiabendazole
43. 4 high enrgy bonds
Total energy expenditure requirement for translocation
kinesin
Going APE
Paclitaxil
44. Ketone
intermediate filaments
Guanine has a
nonsense
mRNA is syntehsized in which direction?
45. Greater melting temperature lower fluidity
Rough ER
6MP
Higher the cholesterol or long saturated fatty acid content
Double Strand DNA repair
46. Must be both activated and inactivated for cell cycle to progress
Permanent cells
transversion
Cyclin - CDK
Which is the most and least abundant type of RNA
47. Commonly results in dramatic decrease in amount of gene transcribed
Promoter mutation
Steps in splicing
Thymine has a
DNA pol I
48. Read froma fixed starting point as a continous sequenecs of bases
mRNA stop codons
Euchromatin
commaless - non - overlapping
Steps in splicing
49. UGA - UAG - UAA
What ties teh nucleosome together
mRNA stop codons
cytokeratin
Functional organization of the gene
50. Inhibits ribonucleotide reductase
Xeroderma pigmentosum
hydroxyurea
Alternate splicing
Paclitaxil