TLS Online TPP Program

#Question id: 21008


Which of the following statement is correct for defined media?

#Part-B Specialized Branches in Biotechnology
  1. Media that contain natural compounds whose chemical composition is not exactly known
  2. Media that contain specific amounts of pure chemical compounds with known chemical compositions  
  3. Media that contain chemical compounds whose chemical composition is not exactly known
  4. None of the above.
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TLS Online TPP Program

#Question id: 12758

#Part-B Specialized Branches in Biotechnology

Refer to the following experiment, which is designed to test the co evolutionary relationships among an unpalatable butterfly (the  monarch),  a  palatable  butterfly  (the  viceroy),  and  a  butterfly  predator  (the  jay).  Monarch butterflies are reared on three diets: milkweed (their natural food), cabbage, and cabbage treated with an extract from milkweed leaves. Viceroy butterflies, mimics of monarchs, also are reared on three diets: willows (their natural food), cabbage, and cabbage treated with an extract from milkweed leaves. In trial 1 of the first experiment, adult butterflies reared on a particular diet are presented one at a  time  at  1-hour  intervals  to  jays  and  the  jays  are  allowed  to  feed.  Each jay is  fed  until  it refuses to eat the butterfly presented, but no more than 12 butterflies are presented to a jay during a particular test. Five birds are used for each test; therefore, up to 60 butterflies can be consumed for each diet test. The observer records the actual number of butterflies  eaten. In trial 2, the experiment is repeated 2 weeks later. In the second experiment, the butterflies are reared on the same diets as in experiment 1. However, when they are offered to jays, some jays receive a monarch  reared  on  milkweed  before  being  offered  the  butterflies  reared  on  the  experimental  diets;  the  other  group  of jays is  first given a viceroy reared on willow before being  offered the butterflies reared on the experimental diets. The initial butterfly offered is included in the total number eaten, but no more than 12 butterflies are presented to each jay.

The experimental design and the data indicate which of the following about the jays? 

TLS Online TPP Program

#Question id: 12759

#Part-B Specialized Branches in Biotechnology

As climate changes because of global warming, species? ranges in the northern hemisphere may move northward. The trees that are most likely to avoid extinction in such an environment are those that

TLS Online TPP Program

#Question id: 12760

#Part-B Specialized Branches in Biotechnology

Which of the examples below provides appropriate abiotic and biotic factors that might determine the distribution of the species in question?

TLS Online TPP Program

#Question id: 12761

#Part-B Specialized Branches in Biotechnology

Refer to the following experiment, which is designed to test the co evolutionary relationships among an unpalatable butterfly (the  monarch),  a  palatable  butterfly  (the  viceroy),  and  a  butterfly  predator  (the  jay).  Monarch butterflies are reared on three diets: milkweed (their natural food), cabbage, and cabbage treated with an extract from milkweed leaves. Viceroy butterflies, mimics of monarchs, also are reared on three diets: willows (their natural food), cabbage, and cabbage treated with an extract from milkweed leaves. In trial 1 of the first experiment, adult butterflies reared on a particular diet are presented one at a  time  at  1-hour  intervals  to  jays  and  the  jays  are  allowed  to  feed.  Each jay is  fed  until  it refuses to eat the butterfly presented, but no more than 12 butterflies are presented to a jay during a particular test. Five birds are used for each test; therefore, up to 60 butterflies can be consumed for each diet test. The observer records the actual number of butterflies  eaten. In trial 2, the experiment is repeated 2 weeks later. In the second experiment, the butterflies are reared on the same diets as in experiment 1. However, when they are offered to jays, some jays receive a monarch  reared  on  milkweed  before  being  offered  the  butterflies  reared  on  the  experimental  diets;  the  other  group  of jays is  first given a viceroy reared on willow before being  offered the butterflies reared on the experimental diets. The initial butterfly offered is included in the total number eaten, but no more than 12 butterflies are presented to each jay.

In the experiment, which data in the table most strongly indicate that viceroys are not obtaining compounds that will make them unpalatable?


TLS Online TPP Program

#Question id: 12762

#Part-B Specialized Branches in Biotechnology

Find  appropriate option for  given question . The figure above depicts the intensity versus frequency curve of an a2coustical receptor of the larva of a noctuid moth. The larva is preyed on by a wasp whose vibrating wings produce a0buzz.
On the basis of the figure, it can be predicted that the wasp buzz 1has a frequency

TLS Online TPP Program

#Question id: 12809

#Part-A Aptitude & General Biotechnology

The breadth of a rectangular hall is three-fourth of its length. If the area of the floor is 768 sq. m. then the difference between the length and breadth of the hall is: