The Etr1 gene product in plants is a receptor for the gas ______, a plant hormone that regulates a diverse array of developmental processes, like seed germination, _____ and ______.

a) ethylene, flowering, stem growth
b) ethylene, flowering, fruit ripening
c) methylene, flowering, fruit ripening
d) ethanol, flowering, fruit ripening


Ans: b) ethylene, flowering, fruit ripening

Biology & Microbiology

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Based on the tree shown above, the presence of complex, multicellular fruiting bodies in Basidiomycete and Ascomycete lineages is an example of:

A. convergent evolution. B. a homologous trait. C. a synapomorphy uniting basidiomycetes and ascomycetes as sister taxa. D. a parsimonious trait. E. an ancestral character state.

Biology & Microbiology

Which microscope uses visible light?

A) confocal microscope B) differential interference contrast microscope C) fluorescence microscope D) scanning acoustic microscope E) scanning electron microscope

Biology & Microbiology

Is determined by the rate at which individuals are added to and subtracted from the population.

Fill in the blank with the corret word(s).

Biology & Microbiology

Explain how the transition to eukaryotic cells, through endosymbiosis, resulted in the loss of an individual's ability to reproduce independently

What will be an ideal response?

Biology & Microbiology