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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. MRNA
step two of RNA processing
capped and tail transcript is called
Protein synthesis initiation
Double Strand DNA repair
2. Inhibits thymidylate synthase down thymine
step two of RNA processing
5FU
histone octamer names
Ribonucleotides are synthesized first and convertec to deoxyribonuclotides by
3. Immotile cilia due to a dyenin arm defect. Results in male nad female inferticility (sperm immotile) - bronchiectasis - and recurrent sinusisits - associated with situs inversus
Type IV collagen is an important structural component of...
Kartageners syndrome
Prokaryotes
Neurofilaments
4. Makes an RNA primer on which DNA polymerase II can initiate replication
Ribonucleotides are synthesized first and convertec to deoxyribonuclotides by
Cell cycle order
Post - translational modifications
Primase
5. VItamin C
What does the hydroxylation of proline and lysine require
degenerate or redundant
Which end of the nucleotide has the triphosphate
Osteogenesis Imperfecta
6. In the nucleus after transcitpion and only processed RNA is transporte out of the nucleus
RNA processing in eukaryotes occurs
Promoter mutation
A- T
Which end of the nucleotide has the triphosphate
7. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA
Order of mitosis
In eukaryotes the starting amino acid is...
Guanine has a
Prokaryote RNA pol
8. Promoter - enhancer - promoter - TATA- transcription initiation site - coding region (including exons and introns) and then the AATAAA
White codon is at the 3 prime end of a tRNA
histone octamer names
Smooth ER
Functional organization of the gene
9. Capping on 5 prime end (7 methylguanosine) -
tRNA gripping and going places
Step one of RNA processing
missense mutation
White codon is at the 3 prime end of a tRNA
10. DNA And RNA synthesized in the 5-3 direction
Hydroxylation of which amino acids are attached to Glycine to form collagen
kinesin
Thymine has a
DNA/RNA/Protein syntesis direction
11. Neurons
Neurofilaments
helicase
Collagedn synthesis where?
origin of replication
12. 2 H bonds greater GC content greater melting point
kinesin
desmin
A- T
Free ribosomes
13. 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
tRNA Structure
DNA topoisomerases
origin of replication
14. Inhibits the atpase which increases intracellular sodium which increases intracellular calcium increases cardiaccontractility
Elastase is inhibited by
polyadenylation does/does not require a template
Digoxin (cardiac glycosides)
Post - translational modifications
15. Inhibits by binding to the potassium side
White codon is at the 3 prime end of a tRNA
Oubain
Common amino acids in elastin
What ties teh nucleosome together
16. Intervening noncoding segments of DNA
Alternate splicing
Purines
Introns
AUG codes For what in prokaryotes
17. Inhibits bacterials dihydrofolate reducatese down thymine
trimethoprim
microtubule
C- G bond
A- T
18. Be So Totatally Cool Read Books (bOne - CarTWOlage - Threeticular - Type IV under the floor)
Macrolides
Collagen
CDKs
kinesin
19. Must be both activated and inactivated for cell cycle to progress
tRNA gripping and going places
cytokeratin
Cyclin - CDK
nucleosid
20. UGA - UAG - UAA
Rough ER
mRNA stop codons
Silencer
Nucleotide excision repair
21. Poly adenylation
step two of RNA processing
Macrolides
Paclitaxil
White codon is at the 3 prime end of a tRNA
22. Prokaryotic only. Elongates leading strand by adding deoxynucleotides to the 3prime end. Elongates laggin strand. 3 prime to 5 prime exonuclease activity
DNA pol III
Total energy expenditure requirement for translocation
Type IV collagen is an important structural component of...
transition
23. Muscle
missense mutation
desmin
Alports syndrome
RNA processing in eukaryotes occurs
24. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes
single stranded binding proteinds
origin of replication
transition
Stable (quiescent)
25. H1
desmin
Hereditary non polyposis colorectal cancer
The only histone not on the core
RNA polymerases in eukaryotes
26. Site of secretory protiens (mucus secreting goblet cells and antibody secreting cells)
A- T
Rough ER
mRNA is syntehsized in which direction?
Deamination of cytosine makes
27. Faulty collagen synthesis causing 1) hyperextensible skin 2) tendency to bleed 3) hypermobile joints
Ehlers Danlos
Proofreading function in eukaryotic RNA
Tetracyclines
universal
28. Change resulting in misreading of all nucleotides downstream - usually resulting in a truncated non functional protien
Griseofulvin
Cell cycle
frame shift
tRNA gripping and going places
29. Xlinked recessive IV collagen bm - kidney - ear and eye -- nephritis and defness ocular disturbances
Alports syndrome
Cyclins
Associations of Ehlers Danlos
cytokeratin
30. Three amino acids necessary for purine synthesis= glutamine - aspartate and glycine
Which is the most and least abundant type of RNA
Neurofilaments
Fluoroquinolones
Gag on pure gold
31. Proline - glycine
chromatin structure
Common amino acids in elastin
DNA pol III
Non homologous end joining
32. More than 1 codon may code for the same amino acid
Paclitaxil
degenerate or redundant
intermediate filaments
RNA polymerases in eukaryotes
33. Hydroxy proline and hydroxylysine
A- T
chromatin structure
Hydroxylation of which amino acids are attached to Glycine to form collagen
Chediak Higashi syndrome
34. Genetic bone disorder (brittle bone disease) type 1 colalgen - fractures (during birth) 2) Blue sclerae 3) hearing loss 4) dental imperfections 1:10000 may be confused with child abuse
Example of permanent cells
pyrimadines
A- T
Osteogenesis Imperfecta
35. Regulatory proteins that control cell cycle events; phase specific; activated CDKs
Kartageners syndrome
Associations of Ehlers Danlos
Free ribosomes
Cyclins
36. Cleave terminal regions of procollagen to transform into insoluable tropocolagen
Example of permanent cells
Mismatch repair
Outside the cell what processing must be done in procolalgen
mRNA is syntehsized in which direction?
37. Anti breast cancer - acts on mts
transversion
Molecular motor protiesn
Going APE
Paclitaxil
38. Has enough energy to created the peptide bond
the tRNA- amino acid bond
Primase
Nucleotide excision repair
In eukaryotes the starting amino acid is...
39. CCA AT 3 PRIME END
White codon is at the 3 prime end of a tRNA
GFAP
Mismatch repair
Axonemal dyenin
40. Inhibits ribonucleotide reductase
Pyrimidines
DNA pol I
hydroxyurea
Sodium K ATPase
41. Odd 30S plus 50 S=70S
What does the hydroxylation of proline and lysine require
Digoxin (cardiac glycosides)
mRNA start codons
Prokaryotes
42. Inhibits dihydrofolate reductase down thymine
Methotrexate
Osteogenesis Imperfecta
Protein synthesis is in which direction
Enhancers and silencer may be located_____
43. Cilia - glagella - mitotic spindle - neurons - centrioles
universal
Kartageners syndrome
microtubule
Gag on pure gold
44. Methyl THYmine has a meTHYl
nonsense
Cilia structure
Enhancers and silencer may be located_____
Thymine has a
45. Contain the actual genetic information coding for protein
Introns
Exons
Enhancers and silencer may be located_____
Methotrexate
46. Asymmetric fluid bilayer - contains - cholesterol - phospholipids - sphingoplipids - glycolipids - and protiends
Plasma membrane composition
Single Strand DNA Repair types
Order of mitosis
Oubain
47. Cylindrical structure composed of helical array of plymerized dimers of alpha and beta tubulin - flagella - cilia - mitotic spindle - grows slowly collapses quickly
cytokeratin
Ribonucleotides are synthesized first and convertec to deoxyribonuclotides by
pyrimadines
microtubule
48. ATP
hydroxyurea
helicase
Introns
tRNA activation
49. AUG inAUGurates protein synthesis
Associations of Ehlers Danlos
mRNA start codons
What ties teh nucleosome together
Which end of a growing DNA strand is the target
50. Even 40S 60S =80S
Eukaroytes
Methotrexate
helicase
White codon is at the 3 prime end of a tRNA