Many crustaceans (for example, lobsters, shrimp, and crayfish) use their tails to swim, but crabs have reduced tails that curl under their shells and are not used in swimming. This is an example of ________.

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#Question id: 6944

#5. Developmental Biology

Which would lead to a dorsalized embryo? (Recall that genes in Drosophila are named for their mutant phenotype.

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#Question id: 6945

#5. Developmental Biology

The portion of the Drosophila body plan which will produce the wing is called

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#Question id: 6947

#5. Developmental Biology

What is the correct dorso-ventral arrangement seen in a cross-section of Drosophila embryo?

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#Question id: 6948

#5. Developmental Biology

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

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#Question id: 6950

#5. Developmental Biology

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

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#Question id: 6951

#5. Developmental Biology

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