Currents caused by opening of which of the following channels contribute to the repolarization phase of the action potential ofventricular muscle fibers?

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#Question id: 19100

#Unit 6. System Physiology – Plant

Xanthomonas oryzae secretes a highly conserved peptide, which mediates quorum sensing by

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#Question id: 11299

#Unit 10. Ecological Principles

Carbon is initially incorporated into the food chain by _____________

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#Question id: 12343

#Unit 10. Ecological Principles

Hybrids between some related species of plants are sterile because the parent plants had different chromosome numbers. Occasionally the chromosome number of such a hybrid  plant doubles spontaneously. Which of the following best describes the descendants of those plants with the double chromosome number?

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#Question id: 3533

#Unit 8. Inheritance Biology

What would be the frequency of dominant phenotype for all character individuals from a mating of two AaBbCc individuals?

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#Question id: 5050

#Unit 5. Developmental Biology

A stem cell capable of producing all the cell types of a lineage(embryonic and extraembryonic) is said to be-