At the 4-cell stage, the EMS cell requires a signal from its neighbor (and sister cell), the P2 blastomere.

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#Id: 6575

#Unit 7. System Physiology – Animal

The Y chromosome is necessary and sufficient for the production of testes, and the testis-determining gene product is called SRY (for sex-determining region of the Y chromosome)

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#Id: 9969

#Unit 4. Cell Communication and Cell Signaling

Homologs

LRP in vertebrates = Arrow in Drosophila

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#Id: 1876

#Unit 10. Ecological Principles

K1>K2/β  and K1/α>K2- Species 2 goes extinct

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#Id: 9132

#Unit 10. Ecological Principles

Some parasitoids themselves serve as hosts for other parasitoids, which are known as hyperparasitoids.

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#Id: 5717

#Unit 10. Ecological Principles

Community Ecology – Group of co-existing and interacting populations in a given space and time.