1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution ?
A
Prevalence of pesticide resistant insects
B
Development of organs from 'stem' cells for organ transplantation
C
production of 'Dolly', the sheep by cloning
D
Development of transgenic animals
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
There are two opposing views about origin of modern man. According to one view Homo erectus in Asia were the ancestors of modern man. A study of variation of DNA however suggested African origin of modern man. What kind of observation of DNA variation could suggest this ?
A
Variation only in Asia and no variation in Africa
B
Similar variation in Africa and Asia
C
Greater variation in Africa than in Asia
D
Greater variation in Asia than in Africa
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Diversification in plant life appeared
A
By seed dispersal
B
Due to abrupt mutations
C
Due to long periods of evolutionary changes
D
Suddenly on earth
4
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms includes -
A
Electron spin resonance (ESR) & fossil DNA
B
Study of carbohydrates/proteins in fossils
C
Study of the conditions of fossilization
D
Study of carbohydrates/proteins in rocks
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