Gradualism is Darwin’s proposition that the differences between even radically different organisms have evolved by small steps through intermediate forms,  not by leaps

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#Id: 2526

#Unit 13. Methods in Biology

The PCR involves two oligonucleotide primers, 17–30 nucleotides in length, which flank the DNA sequence that is to be amplified.

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#Id: 2210

#Unit 11. Evolution and Behavior

Alfred Russel Wallace- Who was collecting specimens in the Malay Archipelago, had independently conceived of natural selection.

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#Id: 3239

#Unit 4. Cell Communication and Cell Signaling

miR-21 targets tumor-suppressor gene PTEN phosphatase

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#Id: 4824

#Unit 13. Methods in Biology

Null hypothesis is either rejected or not rejected based on the viability of the given population or sample.

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#Id: 1462

#Unit 4. Cell Communication and Cell Signaling

The adhesiveness of cadherins depends on the presence of extracellular Ca2+.