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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
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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. Microtubule polymerization defect resulting in lowered phagocytosis. results in recurrent pyogenic infections - partial albinism and peripheral neuropathy
Introns
Chediak Higashi syndrome
What type of collagen is most affected in Ehlers Danlos
Functional organization of the gene
2. Completed protein is released from ribosme through simple hydrolosis and dissociates
Cyclins
Which is the most and least abundant type of RNA
microtubule
Termination
3. Condensed - transciptionally inactive HC- Highly condensed
Translocation
Heterochromatin
The only histone not on the core
microtubule
4. Neuroglia
GFAP
degenerate or redundant
Which end of a growing DNA strand is the target
tRNA activation
5. 9+2 arrangement of microtubules -
DNA ligase
Cilia structure
Nucleotide excision repair
Cholchicine
6. Read froma fixed starting point as a continous sequenecs of bases
Post - translational modifications
commaless - non - overlapping
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
single stranded binding proteinds
7. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end
Higher the cholesterol or long saturated fatty acid content
Collagedn synthesis where?
tRNA Structure
Common amino acids in elastin
8. Strethchy protein within lungs - large artiers - elastic liaments - vocal cords - ligamenta flava)
DNA/RNA/Protein syntesis direction
Cell cycle
Total energy expenditure requirement for translocation
Elastin
9. Changed aaconservative - new aa is similar in chemical structure
GFAP
Euchromatin
missense mutation
step two of RNA processing
10. Nucleotide excision repair - Base Excision repair - Mismath repair
Single Strand DNA Repair types
Proteosomal degradation
Prokaryote RNA pol
tRNA activation
11. Neurons - skeletal - and cardiac muscle - RBCs
Ribonucleotides are synthesized first and convertec to deoxyribonuclotides by
Type IV collagen is an important structural component of...
Example of permanent cells
cytokeratin
12. Odd 30S plus 50 S=70S
Prokaryotes
5FU
Total energy expenditure requirement for translocation
Introns
13. Alpha 1 antitrypisn
Protein synthesis initiation
Purines
chromatin structure
Elastase is inhibited by
14. Codes for formyl methionine (f - Met)
Translocation
Hydroxylation of which amino acids are attached to Glycine to form collagen
AUG codes For what in prokaryotes
Cell cycle order
15. Bind 30S subunit preventing attachment of aminoacyl - tRNA
Sodium K ATPase
Tetracyclines
Replication fork
purines
16. Stretch of DNA that alters gene expression by binding transcription factors
microtubule
A- T
Enhancer
nucleotide
17. 3 H bonds
tRNA Structure
Order of mitosis
Pyrimidines
C- G bond
18. Muscle
desmin
alpha amintin
Cyclins
Vincristine/Vinblastine
19. Ribonucleotide reductase
Where do introns and exons stay
Gag on pure gold
Functional organization of the gene
Ribonucleotides are synthesized first and convertec to deoxyribonuclotides by
20. Greater melting temperature lower fluidity
cytokeratin
Cell cycle order
Higher the cholesterol or long saturated fatty acid content
Sodium K ATPase
21. Mutation in nucleotide excision repair Dry skin with melanoma and other cancers
Step one of RNA processing
Xeroderma pigmentosum
Paclitaxil
What type of collagen is most affected in Ehlers Danlos
22. 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)
universal
C- G bond
promoter
Oubain
23. Prophas - metaphase - anaphase telophase
Order of mitosis
purines
silent mutation
Covalent alterations
24. Attachment of ubiquitin to defective proteinds to tag them for breakdown
Stable (quiescent)
commaless - non - overlapping
Enhancers and silencer may be located_____
Proteosomal degradation
25. Contain the actual genetic information coding for protein
the tRNA- amino acid bond
Non homologous end joining
Exons
Proteosomal degradation
26. Must be both activated and inactivated for cell cycle to progress
Cyclin - CDK
tRNA gripping and going places
purines
Exons
27. A site - incoming aminoacyl tRNA - Psite accomodates growing Peptide - E site holds EmplytRNA as it exits
Going APE
Post - translational modifications
C- G bond
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
28. ATP ase that links peripheral 9 doublets and causes bending of cilium by differential sliding of doublets
Axonemal dyenin
the tRNA- amino acid bond
Hydroxylation of which amino acids are attached to Glycine to form collagen
Rough ER
29. Hn RNA
Which is the most and least abundant type of RNA
transversion
Initial transcript without processing is known as
C- G bond
30. Bm - kidney - ears and eyes
DNA ligase
tRNA Structure
RNA processing in eukaryotes occurs
Type IV collagen is an important structural component of...
31. (A - G) 2 rings Pure As Gold
Vincristine/Vinblastine
mRNA is syntehsized in which direction?
Purines
Stable (quiescent)
32. More than 1 codon may code for the same amino acid
Going APE
Collagedn synthesis where?
degenerate or redundant
CDKs
33. Retrograde to microtubules
Cilia structure
dyenin
transversion
DNA/RNA/Protein syntesis direction
34. Create a nick in the helix to relieve supercoils created during replication
Loading tRNA on to ribosome energy requirement
DNA topoisomerases
single stranded binding proteinds
methionine is only encoded by
35. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes
Elastin
Cell cycle order
Stable (quiescent)
Promoter mutation
36. H1
The only histone not on the core
DNA ligase
Pyrimidines
Oubain
37. Prevents stranges from reannealing
Heterochromatin
Labile
single stranded binding proteinds
DNA pol I
38. Inhibit formation of the initation complex and cause misreading of mRNA
Griseofulvin
Alports syndrome
Aminoglycosides
Molecular motor protiesn
39. Inhibits thymidylate synthase down thymine
Post - translational modifications
Hereditary non polyposis colorectal cancer
5FU
Digoxin (cardiac glycosides)
40. Responsible for the accuracy of amino acid selection
Cell cycle order
Associations of Ehlers Danlos
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
Where do introns and exons stay
41. The N to C
promoter
Protein synthesis is in which direction
step two of RNA processing
Immunohistochemical stains vimentin
42. Xlinked recessive IV collagen bm - kidney - ear and eye -- nephritis and defness ocular disturbances
Alports syndrome
Mebendazole/thiabendazole
Tropocollagen cross links between_____ to form____
Heterochromatin
43. You glyucosolate hte pro - alpha chain lysine resudens and form procollagen (triple helix of alpha chains)
Glycosolation
mRNA stop codons
Protein synthesis initiation
What ties teh nucleosome together
44. A malfunction of mismatch repair (MUt L etc..)
intermediate filaments
Glycosolation
Translocation
Hereditary non polyposis colorectal cancer
45. 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
Steps in splicing
Enhancers and silencer may be located_____
unambiguous
The only histone not on the core
46. Y shaped region along DNA template where leading and lagging strands are syntehsized
Loading tRNA on to ribosome energy requirement
Replication fork
Permanent cells
Cell cycle order
47. Exocytose procollagen into extracellylar sace
Type IV collagen is an important structural component of...
Common amino acids in elastin
DNA/RNA/Protein syntesis direction
Excocytosis of collagen
48. Unattached to any membrane; site of cytosolic and organeller prtoeins
Free ribosomes
Tumor Suppressors
mRNA stop codons
DNA topoisomerases
49. G1 - S - G2 - Mitosis
Cell cycle order
Single Strand DNA Repair types
Functional organization of the gene
RNA processing in eukaryotes occurs
50. Rampant - Massive - TIny rRNA is most common - then mRNA and then tRNA
Plasma membrane composition
commaless - non - overlapping
White codon is at the 3 prime end of a tRNA
Which is the most and least abundant type of RNA
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