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: 19204

#SCPH28 | Zoology

Example of acoustic wave biosensor could be

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#Question id: 17266

#SCPH06 I Botany

First human social life in vertebrates and decline of woody plants appeared in ____

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#Question id: 2962

#SCPH28 | Zoology

Which of the following experimental observations (some real, some contrived) would not be consistent with our current understanding of cytokinesis?

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#Question id: 3464

#SCPH28 | Zoology

Adult male humans generally have deeper voices than do adult female humans, which is the direct result of higher levels of testosterone causing growth of the larynx. If the fossil records ofapes and humans alike show a trend toward decreasing larynx size in adult females and increasing larynx size in adult males, then

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#Question id: 3634

#SCPH12 I Genetics

In the pearl millet plant, color is determined by three alleles at a single locus: Rp1 (red), Rp2 (purple), and Rp3 (green). Red is dominant over purple and green, and purple is dominant over green (Rp1 >Rp2 >Rp3). Which of the following parental cross would produce ½ had red, ¼ purple, ¼ green?