What can be correctly inferred from the figure shown here.

A. Many genes are duplicated

B. Number of different gene families is larger than the total number of genes

C. A gene family arises by repeated duplication of an ancestral gene followed by accumulation of changes in sequence among the copies

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#Question id: 5035

#Unit 5. Developmental Biology

 A fertilized egg is called a:

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#Question id: 5036

#Unit 5. Developmental Biology

 The experiments of Spemann and Mangold first defined what feature of amphibian embryos?

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#Question id: 5037

#Unit 5. Developmental Biology

Genes control development by:

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#Question id: 5038

#Unit 5. Developmental Biology

The folding of sheets of cells, the migration of cells, and cell death are all mechanisms of

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#Question id: 5039

#Unit 5. Developmental Biology

The process by which developing cells achieve their functional, mature identity as liver, or muscle, or nerve is called:

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#Question id: 5040

#Unit 5. Developmental Biology

 The establishment of the anterior-posterior or dorsal-ventral body axes is called: