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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. Change resulting in early stop codon
Collagedn synthesis where?
Associations of Ehlers Danlos
nonsense
chromatin structure
2. GTP
5FU
DNA ligase
Thymine has a
tRNA gripping and going places
3. Trimming removal of n or c terminal propeptides from zymogens to generate mature proteinds
Post - translational modifications
universal
missense mutation
Introns
4. Exocytose procollagen into extracellylar sace
AUG codes For what in prokaryotes
the tRNA- amino acid bond
kinesin
Excocytosis of collagen
5. Asymmetric fluid bilayer - contains - cholesterol - phospholipids - sphingoplipids - glycolipids - and protiends
RNA polymerases in eukaryotes
nucleosid
Cyclins
Plasma membrane composition
6. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end
Which is the most and least abundant type of RNA
CDKs
tRNA Structure
Mebendazole/thiabendazole
7. Proline - glycine
Common amino acids in elastin
Which end of the nucleotide has the triphosphate
Tumor Suppressors
Oubain
8. Contain the actual genetic information coding for protein
Elastase is inhibited by
Exons
DNA ligase
Cilia structure
9. Less condensed - transciptionally active=eu truly transcobed
Euchromatin
Hereditary non polyposis colorectal cancer
DNA ligase
silent mutation
10. Microvilli - muscle contraction - cytokinesis - adhering juntions
chromatin structure
Going APE
tRNA activation
actin and myosin
11. P53 and RB normally inhibit g1 to S progression
Chloramphenicol
Aminoglycosides
dyenin
Tumor Suppressors
12. Binds 50S blocking translocation
polyadenylation does/does not require a template
Pyrimidines
Tumor Suppressors
Clindamycin
13. Prokaryotic only. Elongates leading strand by adding deoxynucleotides to the 3prime end. Elongates laggin strand. 3 prime to 5 prime exonuclease activity
Gag on pure gold
Which end of the nucleotide has the triphosphate
Stable (quiescent)
DNA pol III
14. AUG inAUGurates protein synthesis
desmin
mRNA start codons
What type of collagen is most affected in Ehlers Danlos
Promoter mutation
15. Codes for formyl methionine (f - Met)
alpha amintin
RNA polymerases in eukaryotes
DNA pol I
AUG codes For what in prokaryotes
16. Uracil
Sodium K ATPase
Deamination of cytosine makes
transition
Cyclins
17. Inhibits thymidylate synthase down thymine
Mebendazole/thiabendazole
Guanine has a
What does the hydroxylation of proline and lysine require
5FU
18. In the nucleus after transcitpion and only processed RNA is transporte out of the nucleus
Protein synthesis initiation
Base excision repair
RNA processing in eukaryotes occurs
Exons
19. H1
Macrolides
Euchromatin
The only histone not on the core
What ties teh nucleosome together
20. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA
Initial transcript without processing is known as
Termination
Which end of a growing DNA strand is the target
Prokaryote RNA pol
21. Genetic code is conserved throughout evolution
Non homologous end joining
universal
Elastase is inhibited by
purines
22. 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
DNA pol I
Tropocollagen cross links between_____ to form____
Steps in splicing
histone octamer names
23. 2 H bonds greater GC content greater melting point
Kartageners syndrome
A- T
6MP
Higher the cholesterol or long saturated fatty acid content
24. Faulty collagen synthesis causing 1) hyperextensible skin 2) tendency to bleed 3) hypermobile joints
Which end of a growing DNA strand is the target
Ehlers Danlos
Step Three of RNA processing
Proteosomal degradation
25. A malfunction of mismatch repair (MUt L etc..)
Hereditary non polyposis colorectal cancer
Base excision repair
promoter
CDKs
26. Odd 30S plus 50 S=70S
A- T
Non homologous end joining
Prokaryotes
Double Strand DNA repair
27. CUT 1 ring Cut the Py
kinesin
DNA ligase
Pyrimidines
Chloramphenicol
28. 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
Protein synthesis initiation
Cell cycle order
silent mutation
Clindamycin
29. Mutation in nucleotide excision repair Dry skin with melanoma and other cancers
Chloramphenicol
universal
Xeroderma pigmentosum
promoter
30. Non homologous end joining
tRNA gripping and going places
Mebendazole/thiabendazole
Cell cycle
Double Strand DNA repair
31. The N to C
Prokaryote RNA pol
Protein synthesis is in which direction
Sodium K ATPase
hydroxyurea
32. Hydroxy proline and hydroxylysine
polyadenylation does/does not require a template
DNA ligase
Hydroxylation of which amino acids are attached to Glycine to form collagen
Elastase is inhibited by
33. Muscle
Promoter mutation
chromatin structure
desmin
Total energy expenditure requirement for translocation
34. Phosphorylation - glycosloation - hyderoxylation
Cholchicine
Associations of Ehlers Danlos
Xeroderma pigmentosum
Covalent alterations
35. Capping on 5 prime end (7 methylguanosine) -
mRNA stop codons
Griseofulvin
Associations of Ehlers Danlos
Step one of RNA processing
36. Substituting a purine for a pyrimdine or vice versa
transversion
Going APE
Promoter mutation
Loading tRNA on to ribosome energy requirement
37. Y shaped region along DNA template where leading and lagging strands are syntehsized
Oubain
AUG codes For what in prokaryotes
Osteogenesis Imperfecta
Replication fork
38. HS1 - HSB - H2 - H4
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
histone octamer names
Excocytosis of collagen
Aminoacylt - tRNA synthetase
39. Neurons - skeletal - and cardiac muscle - RBCs
Elongation
polyadenylation does/does not require a template
Labile
Example of permanent cells
40. Unwinds DNA template at replication fork
helicase
desmin
AUG codes For what in prokaryotes
tRNA
41. Unmethylated - newly synthesized string is recognized - mismatched nucleotides are removed and the gap is filled and resealed
5FU
Digoxin (cardiac glycosides)
Xeroderma pigmentosum
Mismatch repair
42. Anit helminth - act on microtubules
Prokaryotes
What ties teh nucleosome together
Mebendazole/thiabendazole
Mismatch repair
43. Prophas - metaphase - anaphase telophase
DNA ligase
the tRNA- amino acid bond
Order of mitosis
nucleosid
44. MRNA
capped and tail transcript is called
RNA polymerases in eukaryotes
actin and myosin
Which end of the tRNA is the amino acid bound to?
45. Antifungal - act on microtubules
commaless - non - overlapping
nucleotide
Griseofulvin
Sodium K ATPase
46. Neurons
Cell cycle
Enhancers and silencer may be located_____
commaless - non - overlapping
Neurofilaments
47. Type III
What type of collagen is most affected in Ehlers Danlos
Hydroxylation of which amino acids are attached to Glycine to form collagen
Xeroderma pigmentosum
Alports syndrome
48. Must be both activated and inactivated for cell cycle to progress
alpha amintin
Cyclin - CDK
origin of replication
Non homologous end joining
49. Even 40S 60S =80S
mRNA start codons
Eukaroytes
Aminoglycosides
Griseofulvin
50. Methyl THYmine has a meTHYl
Gag on pure gold
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
mRNA stop codons
Thymine has a