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#Question id: 12758


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? 

#Part-B Specialized Branches in Biotechnology
  1. Jays learn to avoid eating monarchs by expenence.
  2. Jays have a built-in instinct that enables them to recognize and avoid eating monarchs.
  3. Eating a single monarch causes a jay to avoid eating another monarch for an indefinite period. 
  4. A jay needs to eat many monarchs before it decides that monarchs are unpalatable.

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#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:

TLS Online TPP Program

#Question id: 12810

#Part-A Aptitude & General Biotechnology

The length of a plot is five times its breadth. A playground measuring 245 square metres occupies half of the total area of the plot. What is the length of the plot?

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#Question id: 12811

#Part-A Aptitude & General Biotechnology

The length of a rectangular garden is 12 metres and its breadth is 5 metres. Find the length of the diagonal of a square garden having the same area as that of the rectangular garden :

TLS Online TPP Program

#Question id: 12812

#Part-A Aptitude & General Biotechnology

A circular wire of diameter 42 cm is folded in the shape of a rectangle whose sides are in the ratio 6 : 5 . Find the area enclosed by the rectangle.

TLS Online TPP Program

#Question id: 12813

#Part-A Aptitude & General Biotechnology

A took 15 sec. to cross a rectangular field diagonally walking at the rate of 52 m/min. and B took the same time to cross the same field along its sides walking at the rate of 68 m/min. The area of the field is :

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#Question id: 12814

#Part-A Aptitude & General Biotechnology

The difference between the length and breadth of a rectangle is 23m. If its perimeter is 206 m, then its area is