Test Your Life Science Knowledge!

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| By Chen2001md

Chen2001md

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Quizzes Created: 1 | Total Attempts: 1,294

Questions: 10 | Attempts: 1,294 | Updated: Mar 21, 2023

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Test Your Life Science Knowledge! - Quiz

Let's have some fun! To celebrate our 20th Anniversary, OriGene wants to test your life science knowledge! We have created a quiz for you. If you answer all questions correctly, you will automatically enter to win an OriGene 20th Anniversary T-shirt and a $10 Amazon gift card! We will randomly select 50 winners! Quiz ends on Sunday, November 20, 2016.

Questions and Answers

1.

In what year is OriGene Technologies founded as a research tool company?
- A.
  
  1994
- B.
  
  1995
- C.
  
  1996
- D.
  
  1999
- E.
  
  2001
Correct Answer
C. 1996

Explanation
OriGene Technologies was founded as a research tool company to focus on the creation of the largest commercial collection of full-length human cDNAs in a standard expression vector.

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2.

Cell culture is in vitro because (choose the best answer)?
- A.
  
  Cells are not touching each other
- B.
  
  Interactions with other cell types and 3D interactions are lost
- C.
  
  Cells have lost some proteins
- D.
  
  Changes occur in the cell membrane
Correct Answer
B. Interactions with other cell types and 3D interactions are lost

Explanation
in vitro studies are performed with microorganisms, cells, or biological molecules outside their normal biological context.

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3.

For adherent cells, adhesion provides a signal for cells to do which of the following?
- A.
  
  Grow and divide
- B.
  
  Transduce differentiation signals
- C.
  
  Enhance survival
- D.
  
  All of the above
Correct Answer
D. All of the above

Explanation
Cell adhesion is the process cells interact and attach to a surface, substrate or another cell, mediated by interactions between molecules of the cell surface.

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4.

What does "CRISPR" stand for?
- A.
  
  Clustered Regularly Interdependent Short Palindromic Repeats
- B.
  
  Clustered Regularly Interference Short Palindromic Repeats
- C.
  
  Clustered Regularly Interspaced Short Palindromic Repeats
- D.
  
  Clustered Regularly Interspaced Short Polymer Repeats
Correct Answer
C. Clustered Regularly Interspaced Short Palindromic Repeats

Explanation
CRISPR stands for Clustered Regularly Interspaced Short Palindromic Repeats, which are the hallmark of a bacterial defense system which forms the basis for the popular CRISPR-Cas9 genome editing technology.

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5.

Which of the following products does OriGene offer? (Check All that apply)
- A.
  
  CDNA Clones
- B.
  
  CRISPR
- C.
  
  Antibodies
- D.
  
  Recombinant Human Proteins
- E.
  
  Human Cancer and Normal Tissue
- F.
  
  ShRNA
Correct Answer(s)
A. CDNA Clones
B. CRISPR
C. Antibodies
D. Recombinant Human Proteins
E. Human Cancer and Normal Tissue
F. ShRNA

Explanation
OriGene offers all these products!

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6.

Lentiviruses are a subclass of which virus strain?
- A.
  
  Retroviruses
- B.
  
  Adenoviruses
- C.
  
  Adeno-associated Viruses
- D.
  
  Herpes Viruses
Correct Answer
A. Retroviruses

Explanation
Lentivirus is a genus of viruses of the Retroviridae family, characterized by a long incubation period.

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1
0
7.

What cell types can lentiviral vectors infect? (Check all that apply)
- A.
  
  Non-dividing cells only
- B.
  
  Actively dividing cells
- C.
  
  Quiescent cells
Correct Answer(s)
A. Non-dividing cells only
B. Actively dividing cells

Explanation
Lentiviruses can infect non-dividing and actively dividing cells. They are one of the most efficient methods of a gene delivery vector. The only cells lentiviruses cannot gain access to are quiescent cells (in the G0 state) because this blocks the reverse transcription step.

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8.

TrueORF Gold ORF clones are the only expression validated cDNA clones.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
TrueORF Gold is OriGene’s collection of premium cDNA clones that have passed the ultimate tests: sequence verification and protein expression validation.

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9.

What genes control transgene packaging during lentiviral transduction?
- A.
  
  Vif, vpr, and vpu
- B.
  
  Env, nef, and pol
- C.
  
  Rev, gag, and pol
Correct Answer
C. Rev, gag, and pol

Explanation
Lentiviral vectors are derived from HIV. 3rd generation lentiviral systems have reduced the number of HIV genes required for transgene delivery to 3, rev, gag, and pol, improving the biosafety of the system.

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10.

Which of the following are key features of OriGene's recombinant human proteins? (Select all that apply)
- A.
  
  Broadest Coverage
- B.
  
  Optimal preservation of protein structure, post-translational modifications and functions
- C.
  
  Diverse product formats
- D.
  
  Large scale production available
Correct Answer(s)
A. Broadest Coverage
B. Optimal preservation of protein structure, post-translational modifications and functions
C. Diverse product formats
D. Large scale production available

Explanation
All are key features for OriGene's recombinant human proteins. For details, visit http://www.origene.com/Protein/

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

Current Version
Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
Oct 18, 2016

Quiz Created by
Chen2001md

Test Your Life Science Knowledge!

In what year is OriGene Technologies founded as a research tool company?

Cell culture is in vitro because (choose the best answer)?

For adherent cells, adhesion provides a signal for cells to do which of the following?

What does "CRISPR" stand for?

Which of the following products does OriGene offer? (Check All that apply)

Lentiviruses are a subclass of which virus strain?

What cell types can lentiviral vectors infect? (Check all that apply)

TrueORF Gold ORF clones are the only expression validated cDNA clones.

What genes control transgene packaging during lentiviral transduction?

Which of the following are key features of OriGene's recombinant human proteins? (Select all that apply)