Q. Muscle cells are produced by

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Q. Production of leaves and flowers is due to

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Q. An internal factor that influences growth in plants is

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Q. Synthesis of cytoplasm and cell wall material takes place during

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Q. Acetabularia is a kind of

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Q. Phenomena that some cells evoke a specific developmental response in other cells is

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Q. Notochord is one of few prominent structural features in chick embryo of about

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Q. Acetabularia mediterranea has a cap of

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Q. Growth of multicellular plant is divided into

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Q. In plants, growth and development involve

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Q. Somites are compact cell masses lying immediately lateral to

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Q. Mesoderm cells migrate medially and caudally from both sides and create a mid line thickening called

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Q. In chick shell of egg is secreted as egg passes through the

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Q. Marginal area of blastoderm in which cells remain undetached from yolk is called

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Q. Apical meristems play an important role in

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Q. Cell elongation is retarded by

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Q. Spemann performed experiments to understand concept of

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Q. Gray vegetal cytoplasm gives rise to

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Q. From hensen's node dorsal mesoderm is formed and is organized into

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Q. In next half century, number of people over age 80 will rise from 5 million to

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