The origin of the craniates occurred at roughly the same time as the

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#Question id: 5470

#Unit 8. Inheritance Biology

Numerous pure breeding crosses are made between two inbred plant strains, one having a mean height at maturity of 96 cm and the other as 56 cm. The height of the F1 progeny at maturity averages close to 76 cm. Height of plant control by four pair of polygene. The F2 progeny show the following phenotype.

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#Question id: 12283

#Unit 10. Ecological Principles

For both tables value of Simpson Index is

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#Question id: 7289

#Unit 1. Molecules and their Interaction Relevant to Biology

The following scheme shows the flowering status of a plant species and the photoperiodism. Which of the following conclusions is most appropriate?

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#Question id: 1077

#Unit 4. Cell Communication and Cell Signaling

Would ID50 and LD50 necessarily be the same for a given virus? Why or why not?

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#Question id: 3799

#Unit 3. Fundamental Processes

If replicating bacteria are given a short pulse of radiolabeled thymidine and rapidly killed, the radiolabel shows up as: