The existence of the phenomenon of exaptation is most closely associated with which of the following reasons that natural selection cannot fashion perfect organisms?

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#Question id: 4425

#Unit 3. Fundamental Processes

Transcription of ribosomal RNA is primarily the function of

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#Question id: 14761

#Unit 2. Cellular Organization

Following graph represent phases of in vitro G-actin polymerization.

Which of the following is correct?

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#Question id: 12703

#Unit 8. Inheritance Biology

In the plants, due to mutation in the mitochondrial genome causing cytoplasmic male sterility can be influenced by the nuclear gene (Rf),  which is dominant over the cytoplasmic mitochondrial genome. If a male sterile plant  is pollinated by the fertile male plant with homozygous (Rf)condition, the progeny obtained in F1 will have

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#Question id: 7072

#Unit 5. Developmental Biology

Formation of  Henson’s node takes place by:

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#Question id: 2163

#Unit 2. Cellular Organization

Osmosis