During cell division, sometimes there will be failure of separation of sister chromatids. This event is called

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#Question id: 10910

#Unit 6. System Physiology – Plant

In early research on phloem translocation, both active and passive mechanisms were considered. All theories, both active and passive, assume an energy requirement in both sources and sinks. What will be the INCORRECT explanation of active and passive mechanism?

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#Question id: 27161

#Unit 7. System Physiology – Animal

Blood levels of which of the following substances is decreased in Graves disease?

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#Question id: 3927

#Unit 3. Fundamental Processes

An operon is __

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#Question id: 659

#Unit 1. Molecules and their Interaction Relevant to Biology

What does it mean to say a protein is oligomeric?

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#Question id: 14839

#Unit 5. Developmental Biology

Given are certain facts which define ‘specification’ of a developing embryo.

 A. At the specification stage, commitment to cell identity is labile.

 B. At the specification stage, cell is capable of differentiating autonomously.

 C. The cell “knows” very early what it is to become without interacting with other cells.

 D. A phase where inductive signals trigger cell to determines their fate.

 Which of the above statements best define specification?