After the initial attachment step, A. tumefaciens produces a network of ________fibrils that bind the bacterium tightly to the plant cell surface. 

#Question id: 2508

#Unit 2. Cellular Organization

If you treated cells with a drug that interferes with microtubules, such as colchicine, which of the following would result?

A. Cell shape would be disrupted.

B. Mitosis and meiosis would not occur.

C. The intracellular location of organelles would be disrupted.

#Question id: 5003

#Unit 11. Evolution and Behavior

Fruit fly eyes are of the compound type, structurally very different from the camera-type eyes of mammals. Even the camera-type eyes of mollusks, such as octopi, are structurally quite different from those of mammals. Yet, fruit flies, octopi, and mammals possess very similar versions of Pax-6. The fact that the same gene helps produce very different types of eyes is most likely due to

#Question id: 402

#Unit 1. Molecules and their Interaction Relevant to Biology

If the DG'° of the reaction A -> B is –40 kJ/mol, under standard conditions the reaction:

#Question id: 8916

#Unit 9. Diversity of Life Forms

#Question id: 10673

#Unit 10. Ecological Principles

Which of following attributes of parasite agent acts as a biological control is not necessary?