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. Base + ribose
Chediak Higashi syndrome
Stable (quiescent)
Where do introns and exons stay
nucleosid
2. Anit helminth - act on microtubules
Mebendazole/thiabendazole
Post - translational modifications
Neurofilaments
Cilia structure
3. Exocytose procollagen into extracellylar sace
capped and tail transcript is called
Excocytosis of collagen
Covalent alterations
Permanent cells
4. Methyl THYmine has a meTHYl
DNA pol III
Collagen
Guanine has a
Thymine has a
5. Each codon specifies only 1 amino acid
Chediak Higashi syndrome
Base excision repair
5FU
unambiguous
6. Makes an RNA primer on which DNA polymerase II can initiate replication
Primase
Methotrexate
Going APE
Enhancers and silencer may be located_____
7. Inhibit formation of the initation complex and cause misreading of mRNA
Translocation
hydroxyurea
Outside the cell what processing must be done in procolalgen
Aminoglycosides
8. Lysine/hydroxylysine and combines to form collagen
Tropocollagen cross links between_____ to form____
Glycosolation
dyenin
Fluoroquinolones
9. RNA polymerase I makes rRNA - RNA pol II makes mRNA - RNA pol III makes tRNA
capped and tail transcript is called
Smooth ER
RNA polymerases in eukaryotes
Hydroxylation of which amino acids are attached to Glycine to form collagen
10. Anti breast cancer - acts on mts
Paclitaxil
Base excision repair
Thymine has a
Nucleotide excision repair
11. Poly adenylation
Order of mitosis
step two of RNA processing
What ties teh nucleosome together
silent mutation
12. Site where negative regulators bind
Silencer
Outside the cell what processing must be done in procolalgen
cytokeratin
Tetracyclines
13. Three amino acids necessary for purine synthesis= glutamine - aspartate and glycine
Gag on pure gold
Rough ER
commaless - non - overlapping
Cell cycle
14. Checkpoints control transition between phases of cell cycle. regulated by cyclins - CDKs and tumor suppressors. Mitosis (shortest phse)
Cell cycle
Common amino acids in elastin
promoter
Covalent alterations
15. Elastase
Base excision repair
Which end of a growing DNA strand is the target
Methotrexate
Elastin is broken down by
16. Seals
nonsense
Tropocollagen cross links between_____ to form____
tRNA activation
DNA ligase
17. Introns stay In the nucleus whereas EXons EXit and are EXpressed
Where do introns and exons stay
Covalent alterations
tRNA
Mebendazole/thiabendazole
18. Particular sequnece in genomre where DNA replication begins. May be single (prokaryotes) or multiple (eukaryotes)
Introns
mRNA start codons
origin of replication
Tetracyclines
19. Prokaryotic only. Degrades RNA primer and fills in the gap with DNA (5 prime to 3 prime exonuclease)
Permanent cells
polyadenylation does/does not require a template
Chediak Higashi syndrome
DNA pol I
20. The 3 prime end
Which end of the tRNA is the amino acid bound to?
In eukaryotes the starting amino acid is...
Thymine has a
Enhancers and silencer may be located_____
21. Uracil
Deamination of cytosine makes
Macrolides
Collagen
actin and myosin
22. Change resulting in early stop codon
nonsense
Guanine has a
Xeroderma pigmentosum
Proofreading function in eukaryotic RNA
23. Rampant - Massive - TIny rRNA is most common - then mRNA and then tRNA
Loading tRNA on to ribosome energy requirement
Alports syndrome
Silencer
Which is the most and least abundant type of RNA
24. CUT 1 ring Cut the Py
Pyrimidines
degenerate or redundant
frame shift
Step one of RNA processing
25. Nucleotide excision repair - Base Excision repair - Mismath repair
Base excision repair
Single Strand DNA Repair types
Loading tRNA on to ribosome energy requirement
unambiguous
26. Completed protein is released from ribosme through simple hydrolosis and dissociates
Base excision repair
Termination
Collagedn synthesis where?
Permanent cells
27. Methionine - which may be removed before translation is completed
Cell cycle
DNA pol I
Associations of Ehlers Danlos
In eukaryotes the starting amino acid is...
28. Substituting a pyramidine for a pyrimadine
Post - translational modifications
Tumor Suppressors
Which end of a growing DNA strand is the target
transition
29. Codes for formyl methionine (f - Met)
dyenin
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
Primase
AUG codes For what in prokaryotes
30. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle
universal
desmin
Loading tRNA on to ribosome energy requirement
Sodium K ATPase
31. CCA AT 3 PRIME END
Kartageners syndrome
tRNA Structure
White codon is at the 3 prime end of a tRNA
cytokeratin
32. Different exons can be combined to make nique protiens in different times
Alternate splicing
cytokeratin
Smooth ER
single stranded binding proteinds
33. Brings together 2 ends of DNA fragments no requirement for homology
Non homologous end joining
Griseofulvin
tRNA activation
Axonemal dyenin
34. A malfunction of mismatch repair (MUt L etc..)
Hereditary non polyposis colorectal cancer
Kartageners syndrome
Tumor Suppressors
Single Strand DNA Repair types
35. 1P (blocked by tetracycline)
Covalent alterations
Which is the most and least abundant type of RNA
Loading tRNA on to ribosome energy requirement
Silencer
36. 5 prime to 3 prime
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
Introns
Example of permanent cells
mRNA is syntehsized in which direction?
37. Regulatory proteins that control cell cycle events; phase specific; activated CDKs
DNA ligase
Cyclins
methionine is only encoded by
tRNA aminoacylation
38. Inhibits 50S peptidyl transferase
microtubule
Chloramphenicol
Tetracyclines
nucleosid
39. Inhibits thymidylate synthase down thymine
Osteogenesis Imperfecta
5FU
Elongation
Protein synthesis is in which direction
40. Alpha 1 antitrypisn
AUG codes For what in prokaryotes
Clindamycin
Protein synthesis initiation
Elastase is inhibited by
41. Read froma fixed starting point as a continous sequenecs of bases
Initial transcript without processing is known as
microtubule
commaless - non - overlapping
Aminoglycosides
42. Muscle
desmin
Which end of the nucleotide has the triphosphate
Aminoglycosides
Aminoacylt - tRNA synthetase
43. Strethchy protein within lungs - large artiers - elastic liaments - vocal cords - ligamenta flava)
Labile
Elastin
mRNA start codons
Alternate splicing
44. Condensed - transciptionally inactive HC- Highly condensed
Nucleotide excision repair
DNA/RNA/Protein syntesis direction
Heterochromatin
Elongation
45. Inhibits dihydrofolate reductase down thymine
Kartageners syndrome
actin and myosin
Methotrexate
Protein synthesis is in which direction
46. Unattached to any membrane; site of cytosolic and organeller prtoeins
Free ribosomes
Heterochromatin
Euchromatin
Non homologous end joining
47. UGA - UAG - UAA
dyenin
pyrimadines
mRNA stop codons
Gag on pure gold
48. Epithelial cells
cytokeratin
mRNA stop codons
Base excision repair
origin of replication
49. Xlinked recessive IV collagen bm - kidney - ear and eye -- nephritis and defness ocular disturbances
Steps in splicing
Alports syndrome
Double Strand DNA repair
What type of collagen is most affected in Ehlers Danlos
50. Specific glycosylases recognize and remove damaged bases - AP endonuclease cuts DNA at pyrimidne site - empty sugar is removed and the gap is filled and resealed
Hydroxylation of which amino acids are attached to Glycine to form collagen
Guanine has a
Exons
Base excision repair