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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. Changed aaconservative - new aa is similar in chemical structure
capped and tail transcript is called
missense mutation
Clindamycin
Labile
2. H1
Macrolides
The only histone not on the core
Digoxin (cardiac glycosides)
Neurofilaments
3. 1P blocked by chloramphenicaol and macrolide
Cilia structure
Proteosomal degradation
Translocation
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
4. (A - G) 2 rings Pure As Gold
Ehlers Danlos
Alports syndrome
Purines
Which end of the tRNA is the amino acid bound to?
5. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle
histone octamer names
Sodium K ATPase
RNA processing in eukaryotes occurs
DNA pol III
6. No proofreading function but can initiate chains. RNA poymerase II opens DNA at promoter site
desmin
AUG codes For what in prokaryotes
silent mutation
Proofreading function in eukaryotic RNA
7. The N to C
AUG codes For what in prokaryotes
single stranded binding proteinds
A- T
Protein synthesis is in which direction
8. Made from orogate precuror with PRPP added later
Single Strand DNA Repair types
pyrimadines
Chediak Higashi syndrome
Step one of RNA processing
9. Bm - kidney - ears and eyes
tRNA activation
Deamination of cytosine makes
step two of RNA processing
Type IV collagen is an important structural component of...
10. Methyl THYmine has a meTHYl
Thymine has a
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
Glycosolation
mRNA start codons
11. Less condensed - transciptionally active=eu truly transcobed
Euchromatin
mRNA stop codons
Steps in splicing
Functional organization of the gene
12. Vimentin - desmin - cytockeratin - glial fibrillary acid proteins - neurofilaments
intermediate filaments
Common amino acids in elastin
White codon is at the 3 prime end of a tRNA
Introns
13. Microvilli - muscle contraction - cytokinesis - adhering juntions
actin and myosin
Translocation
Primase
Pyrimidines
14. Non homologous end joining
Permanent cells
Double Strand DNA repair
Excocytosis of collagen
Outside the cell what processing must be done in procolalgen
15. Close to - far from or even within (in an intron) the gene whose expression it regulates
Enhancers and silencer may be located_____
Which end of the tRNA is the amino acid bound to?
Initial transcript without processing is known as
Prokaryote RNA pol
16. Read froma fixed starting point as a continous sequenecs of bases
Thymine has a
histone octamer names
commaless - non - overlapping
Where do introns and exons stay
17. Must be both activated and inactivated for cell cycle to progress
Aminoglycosides
Cyclin - CDK
Protein synthesis is in which direction
Example of permanent cells
18. Ribonucleotide reductase
White codon is at the 3 prime end of a tRNA
degenerate or redundant
Prokaryote RNA pol
Ribonucleotides are synthesized first and convertec to deoxyribonuclotides by
19. Change resulting in early stop codon
Protein synthesis is in which direction
nonsense
silent mutation
Silencer
20. GTP
trimethoprim
Tropocollagen cross links between_____ to form____
The only histone not on the core
tRNA gripping and going places
21. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA
Plasma membrane composition
step two of RNA processing
Prokaryote RNA pol
Protein synthesis is in which direction
22. Antifungal - act on microtubules
capped and tail transcript is called
Mismatch repair
Vincristine/Vinblastine
Griseofulvin
23. Introns stay In the nucleus whereas EXons EXit and are EXpressed
Mismatch repair
Proteosomal degradation
nonsense
Where do introns and exons stay
24. Inhibits 50S peptidyl transferase
Rough ER
Double Strand DNA repair
capped and tail transcript is called
Chloramphenicol
25. ATP ase that links peripheral 9 doublets and causes bending of cilium by differential sliding of doublets
tRNA gripping and going places
Rough ER
Pyrimidines
Axonemal dyenin
26. Stretch of DNA that alters gene expression by binding transcription factors
Cell cycle
Enhancer
alpha amintin
Tropocollagen cross links between_____ to form____
27. 2 H bonds greater GC content greater melting point
Oubain
A- T
silent mutation
Proofreading function in eukaryotic RNA
28. A malfunction of mismatch repair (MUt L etc..)
Hereditary non polyposis colorectal cancer
Osteogenesis Imperfecta
trimethoprim
A- T
29. 3 H bonds
Ehlers Danlos
Griseofulvin
C- G bond
Rough ER
30. Exocytose procollagen into extracellylar sace
AUG codes For what in prokaryotes
Excocytosis of collagen
Tumor Suppressors
Aminoacylt - tRNA synthetase
31. Even 40S 60S =80S
Eukaroytes
histone octamer names
Alports syndrome
step two of RNA processing
32. Particular sequnece in genomre where DNA replication begins. May be single (prokaryotes) or multiple (eukaryotes)
Heterochromatin
actin and myosin
origin of replication
degenerate or redundant
33. More than 1 codon may code for the same amino acid
AUG codes For what in prokaryotes
pyrimadines
degenerate or redundant
Primase
34. VItamin C
What does the hydroxylation of proline and lysine require
DNA topoisomerases
Which end of a growing DNA strand is the target
Loading tRNA on to ribosome energy requirement
35. In the nucleus after transcitpion and only processed RNA is transporte out of the nucleus
Ehlers Danlos
RNA processing in eukaryotes occurs
Elongation
Step one of RNA processing
36. H1 string
Proofreading function in eukaryotic RNA
6MP
What ties teh nucleosome together
Mismatch repair
37. Inhibits the atpase which increases intracellular sodium which increases intracellular calcium increases cardiaccontractility
methionine is only encoded by
Digoxin (cardiac glycosides)
Tumor Suppressors
Excocytosis of collagen
38. CCA AT 3 PRIME END
Gag on pure gold
White codon is at the 3 prime end of a tRNA
missense mutation
Permanent cells
39. Epithelial cells
Xeroderma pigmentosum
mRNA is syntehsized in which direction?
cytokeratin
Exons
40. Neurons
Neurofilaments
Fluoroquinolones
Collagedn synthesis where?
Methotrexate
41. Specific endonucleases release the oligonucleotide containing damaged bases. DNA polymerase and logase fill and resealt eh gap
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
polyadenylation does/does not require a template
Cholchicine
Nucleotide excision repair
42. Muscle
Digoxin (cardiac glycosides)
desmin
Free ribosomes
Prokaryote RNA pol
43. Antigout - acts on mts
commaless - non - overlapping
nucleosid
Xeroderma pigmentosum
Cholchicine
44. 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
CDKs
Mismatch repair
Elongation
Alports syndrome
45. RNA polymerase I makes rRNA - RNA pol II makes mRNA - RNA pol III makes tRNA
RNA polymerases in eukaryotes
Ehlers Danlos
Thymine has a
Functional organization of the gene
46. AUG inAUGurates protein synthesis
The only histone not on the core
Osteogenesis Imperfecta
mRNA start codons
Permanent cells
47. Three amino acids necessary for purine synthesis= glutamine - aspartate and glycine
The only histone not on the core
DNA ligase
Double Strand DNA repair
Gag on pure gold
48. Never go to Go divide rapidly with short G1 bone marrow - gut epithelium - skin - hair follicles
Translocation
Labile
Steps in splicing
Nucleotide excision repair
49. DNA And RNA synthesized in the 5-3 direction
The only histone not on the core
GFAP
mRNA is syntehsized in which direction?
DNA/RNA/Protein syntesis direction
50. Rampant - Massive - TIny rRNA is most common - then mRNA and then tRNA
Cholchicine
hydroxyurea
single stranded binding proteinds
Which is the most and least abundant type of RNA