Darwinʹs mechanism of natural selection required long time spans in order to modify species. From whom did Darwin get the concept of Earthʹs ancient age?

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#Question id: 18661

#Unit 13. Methods in Biology

Which of the following highly sensitive analytical technique particularly useful for studying microheterogeneity in a protein

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#Question id: 9240

#Unit 9. Diversity of Life Forms

Use the following figure to answer the question.

Looking at the figure, what can you conclude about the data?

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#Question id: 7055

#Unit 5. Developmental Biology

In drosophila, in the third instar leg disc, the center of the disc secretes the highest concentration of two morphogens:

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#Question id: 96

#Unit 1. Molecules and their Interaction Relevant to Biology

A reducing sugar is one that

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#Question id: 3528

#Unit 8. Inheritance Biology

Consider the following cross:

A/a ; B/b ; C/c ; D/d ; E/e  X a/a ; B/b ; c/c ; D/d ; e/e

What proportion of progeny will phenotypically resemble the first parent?