TLS Online TPP Program

#Question id: 16963


Which statements is not true for Micro-evolution

#Unit 11. Evolution and Behavior
  1. Variety of beak shape among the finches of Galapagos island
  2. Colour change in peppered moth in England during Industrial Revolution
  3. Evolution of DDT resistant Insect populations.
  4. Evolution of tetrapod from fish
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TLS Online TPP Program

#Question id: 3044

#Unit 2. Cellular Organization

If the pH indicator were left out of MacConkey agar, the medium would be

TLS Online TPP Program

#Question id: 3045

#Unit 2. Cellular Organization

Which one of the following combinations Mac-Conkey Agar allows to growth of gram negative bacteria?

(P) Bile salts                          (Q) Sodium chloride

(R) Methylene blue                  (S) Crystal violet

TLS Online TPP Program

#Question id: 3046

#Unit 2. Cellular Organization

Which one of the following reagent used in differentiation of gram positive and Gram negative bacteria?

(P) Congo red                        (Q) Safranine

(R) Methylene blue                  (S) Iodine

TLS Online TPP Program

#Question id: 3047

#Unit 2. Cellular Organization

A rapidly growing bacterial species such as E. coli exhibits a typical phase of growth cycle in liquid nutrient broth. If a bacterial culture has starting density 1000 cells/ml in log phase and after four hours cell density is 4000 cells/ml.  What is specific growth rate per hour? 

TLS Online TPP Program

#Question id: 3048

#Unit 2. Cellular Organization

 If a bacterium regenerates from an endospore that did not possess any of the plasmids that were contained in its original parent cell, the regenerated bacterium will probably

TLS Online TPP Program

#Question id: 3049

#Unit 2. Cellular Organization

E. coli cells typically make most of their ATP by metabolizing glucose. Under the conditions of this experiment, what should be true of E. coliʹs generation time