Who hypothesized that different organisms originated separately by spontaneous generation from nonliving matter ?

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#Question id: 1662

#Unit 4. Cell Communication and Cell Signaling

What is the approximate number of D segment genes in the immunoglobulin heavy chain gene locus?

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#Question id: 29105

#Unit 8. Inheritance Biology

If two set of chromosome is considered in G1 phase, then at which phase of the cell cycle, the no of chromosome as well as no of DNA cell both are doubled?

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#Question id: 5008

#Unit 11. Evolution and Behavior

Adaptive radiations can be a direct consequence of four of the following five factors. Select the exception.

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#Question id: 20297

#Unit 7. System Physiology – Animal

Hyperpigmentation is a sign of: 

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#Question id: 5073

#Unit 5. Developmental Biology

The emergence of the polarity of an embryo is the result of: