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#Question id: 23592


Which of the following list gives the amount of foreign DNA that can be inserted into vectors is not true?

#Unit 13. Methods in Biology
  1. YAC - 400 to 500 kb 
  2. Plasmids - 20 kb
  3. Bacteriophage l - up to 22 kb 
  4. Cosmids - up to 5 kb

Answer:- Option(s): 4


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TLS Online TPP Program

#Question id: 26483

#Unit 2. Cellular Organization

lac repressor binds to

TLS Online TPP Program

#Question id: 26481

#Unit 2. Cellular Organization

Which of the following are the characteristics of prokaryotic operator O1
a. Made up of 21-bp sequence 
b. It has twofold/dyad symmetry 
c. Recognized by two subunits of Lac repressor
d. On each O1 four unit of Lac repressor binds

TLS Online TPP Program

#Question id: 26480

#Unit 2. Cellular Organization

Optimal length of prokaryotic promoter should be

TLS Online TPP Program

#Question id: 26479

#Unit 2. Cellular Organization

 Mutations in the three lac operators shows different values of fold repression  in which of the following situation will get most  effective repression


TLS Online TPP Program

#Question id: 26478

#Unit 2. Cellular Organization

How many operators in Lac operon system

TLS Online TPP Program

#Question id: 26477

#Unit 2. Cellular Organization

Lac operon consist of

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