Must Cover AIPMT 2015 Biology Questions – These questions and their variations are repeated almost every year!

Meritnation|Apr 21st, 2015 01:10pm

Aspirants of medical and dental colleges are all set to appear for the All India Pre Medical Test, better known as the AIPMT exam, to be held on 3rd May, 2015. Since the admit cards for AIPMT 2015 were released on the official website, aspirants have taken their preparations a step further.

The three subjects in the AIPMT 2015 syllabus are Physics, Chemistry and Biology, Biology being further divided into Botany and Zoology. With only about 10 days left till the day of the exam, students are sure to be in search of last minute tricks and solutions to better their chances at a good score.

Meritnation experts studied and analysed the trends in the Biology section of the AIPMT question papers and created a list of questions that have appeared regularly in the last 10 years, in some form or the other. These questions are repeated almost every year with some variation. Aspirants may make use of the following questions to revise their AIPMT syllabus, and score well in exams!
 

Question 1 (AIPMT 2014): Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of:

 

Option A Option B Option C Option D
Analogous organs Adaptive radiation Homologous organs Convergent evolution

 
Correct Answer: Option C
Forelimbs of a cat and a lizard are used in walking; forelimbs of a whale are used in swimming and forelimbs of a bat are used in flying. These are examples of homologous organs as all of the mentioned organs are modified forelimbs that have become different through adaptation due to different types of habitats.

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Question 2 (AIPMT 2014): Which one of the following are analogous structures?

 

Option A Option B Option C Option D
Wings of Bat and Wings of Pigeon Gills of Prawn and Lungs of Man Thorns of Bougainvillea and Tendrils of Cucurbita Flippers of Dolphin and Legs of Horse

 
Correct Answer: Option A
The wings of bats and pigeons have same function but they are not anatomically similar. Similarly the gills of prawns and lungs of man have same function of respiration but they are also anatomically different.
Organs given in options (3) and (4) are homologous organs.
Hence, the correct options for this question could be (1) or (2).

Note: If we consider convergent evolution, only option (1) would be the correct answer as prawns and humans have different habitats, therefore their organs are bound to be anatomically different but bats and birds share a common habitat, adaptations and mode of life.
 
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Question 3 (AIPMT 2012): Which one of the following options gives one correct example each of convergent evolution and divergent evolution?

 

Option A Option B Option C Option D
Convergent evolution Divergent evolution
Eyes of octopus and mammals Bones of forelimbs of Vertebrates
Convergent evolution Divergent evolution
Thorns of Bougainvillea and tendrils of Cucurbita Wings of butterflies and birds
Convergent evolution Divergent evolution
Bones of forelimbs of vertebrates Wings of butterfly and birds
Convergent evolution Divergent evolution
Thorns of Bougainvillea and tendrils of Cucurbita Eyes of Octopus and mammals

 
Correct Answer: Option A
Convergent evolution: Eyes of octopus and mammals
Divergent evolution: Bones of forelimbs of vertebrates

 
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Question 4 (AIPMT 2010): Darwin’s finches are a good example of:

 

Option A Option B Option C Option D
Industrial melanism Connecting link Adaptive radiation Convergent evolution

 
Correct Answer: Option C
Adaptive radiation

 
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Question 5 (AIPMT 2009): Phylogenetic system of classification is based on:

 

Option A Option B Option C Option D
Morphological features Chemical constituents Floral characters Evolutionary relationships

 
Correct Answer: Option D
Evolutionary relationships

 
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Question 6 (AIPMT 2008): Thorn of Bougainvillea and tendril of cucurbita are example of:

 

Option A Option B Option C Option D
Retrogressive evolution Analogous organs Homologous organs Vestigial organs

 
Correct Answer: Option C
Homologous organs

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Question 7 (AIPMT 2008): Which one of the following pairs of items correctly belongs to the category of organs mentioned against it?

 

Option A Option B Option C Option D
Wings of honey-bee and wings of crow – Homologous organs Thorn of Bougainvillea and tendrils of Cucurbita – Analogous organs Nictitating membrane and blind spot in human eye – Vestigial organs Nephridia of earthworm and malpighian tubules of cockroach – Excretory organs

 
Correct Answer: Option D
Wings of honey bee and the wings of crow are analogous organs, thorn of Bougainvillea and tendrils of Cucurbita are homologous organs & blind spot in humans represent the point where the optic nerve will leave the eye ball so it is not vestigial.

 
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Share with your friends and compare how you fair against the toughest questions ever asked in AIPMT Biology.

Best of luck for AIPMT 2015 on 3rd May!

Add Comment 1 Comment

  • 1. shreya  |  April 23rd, 2015 at 12:42 am

    its really helpful!!!!

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