The figure below is the diagrammatic representation of the E. coli vector pBR322. Which one of the given options correctly identifies its certain comp - Biology MCQ Biology | ExamTest.live | ExamTest.live

Home Tests Search Rank Profile

mediumMCQBiologyBiology

4 marks (−1)

The figure below is the diagrammatic representation of the E. coli vector pBR322. Which one of the given options correctly identifies its certain component(s)?

A $am p^{R}, t e t^{R} - antibiotic resistance genes$
B $or i - original restriction enzyme$
C $ro p - reduced osmotic pressure$
D $H in d III, E co R I - selectable markers$

Solution & Step-by-step Explanation

In the pBR322 vector: am p^{R} and t e t^{R} are genes for resistance to ampicillin and tetracycline, respectively. They act as selectable markers. or i stands for Origin of Replication. ro p codes for proteins involved in the replication of the plasmid. H in d III and E co R I are specific restriction enzyme recognition sites.

Practice this question

Try it yourself before checking the explanation above.

The figure below is the diagrammatic representation of the E. coli vector pBR322. Which one of the given options correctly identifies its certain component(s)?

A

am p^{R}, t e t^{R} - antibiotic resistance genes

B

or i - original restriction enzyme

C

ro p - reduced osmotic pressure

D

H in d III, E co R I - selectable markers

Share This Question

Biotechnology Vectors pBR322

Related Questions

The main organelle involved in modification and routing of newly synthesized proteins to their destinations is :

There are two opposing views about origin of Modern man. According to one view Homo erectus in Asia were the ancestors of modern man. A study of variations of DNA however suggested African origin of Modern man. What kind of observation on DNA variation could suggest this ?

The world's highly prized wool yielding 'Pashmina' breed is :

Grey crescent is the area :

Photosynthesis in C4 plants is relatively less limited by atmospheric CO2 levels because :

There exists a close association between the alga and the fungus within a lichen. The fungus :

Ready for a Full Test?

Practice with timed mock tests and track your performance across Biology.

Browse Tests Leaderboard

Discussion