During which geological period was there an first definite evidence of land plants and algae dominant of many plants?

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#Question id: 6948

#Unit 5. Developmental Biology

Which of the following genes is expressed at the posterior margin of each parasegment

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#Question id: 6949

#Unit 5. Developmental Biology

During gastrulation in Xenopus, the future mesoderm and endoderm move inside the embryo through the "blastopore"; in contrast, in chickens, gastrulation involves cells moving inward through the:

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#Question id: 6950

#Unit 5. Developmental Biology

In mammalian development, the embryo will form from which population of cells?

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#Question id: 6951

#Unit 5. Developmental Biology

In chick development, the cell movement during gastrulation is called:

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#Question id: 6952

#Unit 5. Developmental Biology

Which technique is commonly used for gene knock-out in mice?

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#Question id: 6953

#Unit 5. Developmental Biology

Maternal factors are: