DNA that has been liberally labeled with radioactive 14C is used as the template for replication. Replication is carried out in a medium containing only unlabeled nucleotides. After two rounds of replication, what percent of DNA molecules are still labeled?

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#Question id: 5088

#SCPH01 Biochemistry

 If gastrulation was blocked by an environmental toxin, then ________.

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#Question id: 5088

#SCPH28 | Zoology

 If gastrulation was blocked by an environmental toxin, then ________.

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#Question id: 5089

#SCPH01 Biochemistry

The archenteron of the developing sea urchin eventually develops into the ________.

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#Question id: 5089

#SCPH28 | Zoology

The archenteron of the developing sea urchin eventually develops into the ________.

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#Question id: 5090

#SCPH01 Biochemistry

Which of the following is a correct description of the fate of the germ layers?

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#Question id: 5090

#SCPH28 | Zoology

Which of the following is a correct description of the fate of the germ layers?