Phase-contrast microscopy depends on the refractive index of the region of specimen and generates image in which we see a pattern of 

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#Question id: 3456

#11. Evolution and Behavior

Which scientist suggested that human social behavior may have a genetic basis?

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#Question id: 5026

#11. Evolution and Behavior

Whatever its ultimate cause(s), the Cambrian explosion is a prime example of

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#Question id: 23428

#Aptitude

If A + B means A is the brother of B; A −B means A is the sister of B and A × means A is the father of B. Which of the following means that C is the son of M?

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#Question id: 10976

#7. System Physiology – Animal

In a resting adult, the typical ventricular ejection fraction has what value?

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#Question id: 4768

#8. Inheritance Biology

A trait that appears to be dominant in one sex but recessive in the other is called: