During the mechanochemical cycle of kinesin, the forward displacement of the motor domain is driven by: 

a. Dissociation of ADP from trailing head 

b. Binding of ATP in the leading head

c. Dissociation of ADP from leading head

d. Binding of ATP in the trailing head 

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#Question id: 4031

#Unit 3. Fundamental Processes

An experiment was designed to obtain nonspecific transcription from both strands of a DNA molecule. Which of the following strategies would be most effective in achieving this?

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#Question id: 9052

#Unit 9. Diversity of Life Forms

Which of the following causes seasons on Earth?

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#Question id: 5267

#Unit 8. Inheritance Biology

The F plasmid carries the information for

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#Question id: 14823

#Unit 2. Cellular Organization

Some bacteria, such as Rhizobium and Corynebacterium, can attain many shapes not just one, called as

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#Question id: 5238

#Unit 5. Developmental Biology

all tissue types possess a unique stem cell niche, and despite many differences among the niche architecture of different tissues, several common principles of stem cell regulation can be applied to all environments. These principles involve extracellular mechanisms leading to intracellular changes that regulate stem cell behavior.

Column A	Column B
I. Extracellular regulatory mechanisms	i. Regulation by endocrine, paracrine, or juxtacrine mechanisms
II. Intracellular regulatory mechanisms	ii. Regulation by a network of transcription factors
	iii. Epigenetic regulation
	iv. Regulation by cell-to-cell and cell-to-matrix adhesions
	v. Regulation by cytoplasmic determinants

Match the following regulatory mechanism (column A) with the factors that regulate stem cell behavior (column B).