When Enzyme-substrate interactions replace most or all of the hydrogen bonds between the substrate and water that would otherwise impede reaction is called as

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#Question id: 28416

#Unit 5. Developmental Biology

The switch from maternal to zygotic gene expression in chick embryo occurs at around the___

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#Question id: 4990

#Unit 11. Evolution and Behavior

Fly species W, found in a certain part of the island, produces fertile offspring with species Y. Species W does not produce fertile offspring with species X or Z. If no other species can hybridize, then species W and Y

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#Question id: 11798

#Unit 6. System Physiology – Plant

Companion cells transport of photosynthetic products from producing cells in mature leaves to the sieve elements in the minor veins of the leaf. There are at least three different types of companion cells in the minor veins of mature, exporting leaves, All three cell types have dense cytoplasm and abundant mitochondria;

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#Question id: 10590

#Unit 10. Ecological Principles

Which of the following is correct figure? 

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#Question id: 31087

#Unit 4. Cell Communication and Cell Signaling

For smooth muscle contraction, Ca2+-calmodulin complex activates: