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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. 1P blocked by chloramphenicaol and macrolide
Higher the cholesterol or long saturated fatty acid content
AUG codes For what in prokaryotes
DNA pol I
Translocation
2. Asymmetric fluid bilayer - contains - cholesterol - phospholipids - sphingoplipids - glycolipids - and protiends
Plasma membrane composition
Sodium K ATPase
Cilia structure
Griseofulvin
3. Lysine/hydroxylysine and combines to form collagen
Tropocollagen cross links between_____ to form____
Promoter mutation
Type IV collagen is an important structural component of...
nucleotide
4. Methyl THYmine has a meTHYl
DNA pol I
Translocation
Thymine has a
step two of RNA processing
5. Proline - glycine
Cyclin - CDK
Example of permanent cells
step two of RNA processing
Common amino acids in elastin
6. Checkpoints control transition between phases of cell cycle. regulated by cyclins - CDKs and tumor suppressors. Mitosis (shortest phse)
Pyrimidines
Griseofulvin
Cell cycle
tRNA Structure
7. Retrograde to microtubules
Loading tRNA on to ribosome energy requirement
dyenin
5FU
C- G bond
8. Brings together 2 ends of DNA fragments no requirement for homology
Non homologous end joining
DNA pol III
Clindamycin
transversion
9. Unwinds DNA template at replication fork
Translocation
helicase
mRNA start codons
Free ribosomes
10. Has enough energy to created the peptide bond
the tRNA- amino acid bond
Loading tRNA on to ribosome energy requirement
Cell cycle order
Immunohistochemical stains vimentin
11. Commonly results in dramatic decrease in amount of gene transcribed
Promoter mutation
In eukaryotes the starting amino acid is...
chromatin structure
Collagedn synthesis where?
12. Anit helminth - act on microtubules
Tetracyclines
Cell cycle
Mebendazole/thiabendazole
Elastase is inhibited by
13. Odd 30S plus 50 S=70S
Pyrimidines
Prokaryotes
The only histone not on the core
Protein synthesis is in which direction
14. 1P (blocked by tetracycline)
Clindamycin
tRNA aminoacylation
Loading tRNA on to ribosome energy requirement
Single Strand DNA Repair types
15. Base+ribose+phosphate linked by a phosphodiester bond
Functional organization of the gene
nucleotide
Prokaryotes
Molecular motor protiesn
16. Must be both activated and inactivated for cell cycle to progress
Smooth ER
Cyclin - CDK
Aminoacylt - tRNA synthetase
Termination
17. One codon AUG
Tropocollagen cross links between_____ to form____
Neurofilaments
methionine is only encoded by
Xeroderma pigmentosum
18. Made from orogate precuror with PRPP added later
pyrimadines
Which end of a growing DNA strand is the target
histone octamer names
Translocation
19. Anti cancer - act on microtubules
helicase
The only histone not on the core
Vincristine/Vinblastine
capped and tail transcript is called
20. Uracil
Excocytosis of collagen
AUG codes For what in prokaryotes
Deamination of cytosine makes
the tRNA- amino acid bond
21. Microvilli - muscle contraction - cytokinesis - adhering juntions
actin and myosin
AUG codes For what in prokaryotes
Collagen
RNA processing in eukaryotes occurs
22. Tansport cellular cargo toward opposite ends of microtubule tracks
Initial transcript without processing is known as
Common amino acids in elastin
Nucleotide excision repair
Molecular motor protiesn
23. Specific endonucleases release the oligonucleotide containing damaged bases. DNA polymerase and logase fill and resealt eh gap
the tRNA- amino acid bond
single stranded binding proteinds
promoter
Nucleotide excision repair
24. 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
Immunohistochemical stains vimentin
tRNA
Glycosolation
Promoter mutation
25. Substituting a purine for a pyrimdine or vice versa
Proofreading function in eukaryotic RNA
Associations of Ehlers Danlos
DNA pol I
transversion
26. Remain in G0 regenerate from stem cells
RNA processing in eukaryotes occurs
chromatin structure
Elastin is broken down by
Permanent cells
27. ATP- AMP (2 phosphoanhydride bonds)
DNA pol III
Replication fork
Collagedn synthesis where?
tRNA aminoacylation
28. Strethchy protein within lungs - large artiers - elastic liaments - vocal cords - ligamenta flava)
single stranded binding proteinds
Elastin
Translocation
pyrimadines
29. AD and AR- associated iwth joint dislocation - berry aneurysms - organ rupture
Associations of Ehlers Danlos
Initial transcript without processing is known as
Double Strand DNA repair
Cell cycle order
30. Particular sequnece in genomre where DNA replication begins. May be single (prokaryotes) or multiple (eukaryotes)
origin of replication
Alternate splicing
Termination
mRNA start codons
31. The N to C
C- G bond
Introns
Protein synthesis is in which direction
Axonemal dyenin
32. Site of secretory protiens (mucus secreting goblet cells and antibody secreting cells)
RNA processing in eukaryotes occurs
Xeroderma pigmentosum
Rough ER
Thymine has a
33. Seals
DNA ligase
trimethoprim
Methotrexate
Tumor Suppressors
34. Hydroxy proline and hydroxylysine
Hydroxylation of which amino acids are attached to Glycine to form collagen
Deamination of cytosine makes
degenerate or redundant
nonsense
35. Promoter - enhancer - promoter - TATA- transcription initiation site - coding region (including exons and introns) and then the AATAAA
hydroxyurea
Initial transcript without processing is known as
chromatin structure
Functional organization of the gene
36. Anti breast cancer - acts on mts
Hereditary non polyposis colorectal cancer
Paclitaxil
Non homologous end joining
Replication fork
37. Rampant - Massive - TIny rRNA is most common - then mRNA and then tRNA
tRNA gripping and going places
Which is the most and least abundant type of RNA
Plasma membrane composition
Cilia structure
38. A malfunction of mismatch repair (MUt L etc..)
Hereditary non polyposis colorectal cancer
origin of replication
DNA ligase
Rough ER
39. Connective tissue
Elongation
tRNA aminoacylation
Immunohistochemical stains vimentin
Vincristine/Vinblastine
40. Same aa often base change in 3rd position of codon
Tetracyclines
silent mutation
Deamination of cytosine makes
Which end of a growing DNA strand is the target
41. Responsible for the accuracy of amino acid selection
DNA/RNA/Protein syntesis direction
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
CDKs
capped and tail transcript is called
42. 5 prime to 3 prime
mRNA is syntehsized in which direction?
Double Strand DNA repair
Kartageners syndrome
Primase
43. Muscle
Mismatch repair
desmin
CDKs
Higher the cholesterol or long saturated fatty acid content
44. Blocks denovo purine synthesis
C- G bond
6MP
DNA pol III
Promoter mutation
45. Greater melting temperature lower fluidity
Labile
Higher the cholesterol or long saturated fatty acid content
mRNA stop codons
cytokeratin
46. Cleave terminal regions of procollagen to transform into insoluable tropocolagen
mRNA start codons
Outside the cell what processing must be done in procolalgen
helicase
Replication fork
47. Codes for formyl methionine (f - Met)
Euchromatin
AUG codes For what in prokaryotes
nucleotide
In eukaryotes the starting amino acid is...
48. Neuroglia
Tropocollagen cross links between_____ to form____
GFAP
Xeroderma pigmentosum
single stranded binding proteinds
49. Aminoacyl - tRNA binds to A site 2) peptidyltransferase catalyzes peptide bond formation transfers growing polypeptie to amino acid in A site 3) ribosome advances 3 nucleotides toward the 3 prime end of RNA moving peptiydyl RNA to P site
Tetracyclines
Elongation
Deamination of cytosine makes
purines
50. Be So Totatally Cool Read Books (bOne - CarTWOlage - Threeticular - Type IV under the floor)
Termination
Collagen
In eukaryotes the starting amino acid is...
mRNA is syntehsized in which direction?