TLS Online TPP Program

#Question id: 11254


Character displacement:

#Unit 10. Ecological Principles
  1. Occurs when competing species converge to use similar resources

  2. Refers to the evolution of different species in isolation
  3. Can be identified by comparing populations of competing species in allopatry and sympatry
  4. Only happens in plant populations
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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: 26482

#Unit 2. Cellular Organization

Which of the following is incorrectly matched if in the medium

a. glucose + lactose

= basal level of transcription

b. glucose + lactose

= no transcription

c. glucose  lactose+

= activated level of transcription

d. glucose + lactose +

= basal level of transcription







TLS Online TPP Program

#Question id: 26483

#Unit 2. Cellular Organization

lac repressor binds to

TLS Online TPP Program

#Question id: 26484

#Unit 2. Cellular Organization

Which of the following graph is correct in response to inducer molecule

                     


                                                            a                                                                                                                                                                         b

     

TLS Online TPP Program

#Question id: 26485

#Unit 3. Fundamental Processes

CAP–cAMP complex binds to upstream element as

TLS Online TPP Program

#Question id: 26486

#Unit 3. Fundamental Processes

Which of the following is responsible  to increase the rate of open promoter complex formation by enhancing the k2