Two separate processes, the first involves a signaling pathway that facilitates the infection process itself and  the second involves the activation of a set of genes that regulate the formation of root nodules. Which of the following receptor is thought to participate in both processes?

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#Question id: 2297

#Unit 2. Cellular Organization

Which structure is composed of phospholipids and regulates the movement of substances in and out of cells?

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#Question id: 292

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following types of non-covalent bonds or interactions is responsible for forming the α helix and β sheet secondary structural motifs of a protein:

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#Question id: 12969

#Unit 10. Ecological Principles

In which of the following habitats would one expect to find the highest diversity of vascular plants? 

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#Question id: 19872

#Unit 13. Methods in Biology

Recognize the same sequence and can cut at exactly the same position, these enzyme are called__

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#Question id: 26477

#Unit 2. Cellular Organization

Lac operon consist of