During mammalian labor and delivery, the contraction of uterine muscles is enhanced by oxytocin. This is an example of ________.

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#Question id: 37889

#Plant Biotechnology

Consider the following statements regarding vascular differentiation:

1. Auxin is the principal limiting factor for vascular differentiation.

2. Gibberellic Acid (GA) is essential for the differentiation of phloem.

3. Lower levels of NH4+ and NO3- inhibit vascularization.

4. A high Cytokinin : Auxin ratio can promote both xylem and phloem differentiation.

Which of the statements given above are CORRECT?

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#Question id: 37890

#Plant Biotechnology

In which plant were the TED genes (TED2, TED3, TED4) identified as being expressed during the redifferentiation of mesophyll cells into tracheary elements?

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#Question id: 37891

#Plant Biotechnology

In the context of vascular tissue differentiation in vitro, which of the following sucrose concentrations is correctly matched with the type of tissue it predominantly induces? 

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#Question id: 37892

#Plant Biotechnology

Which of the following statements regarding the molecular basis of tracheary element differentiation is CORRECT? 

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#Question id: 37893

#Plant Biotechnology

Tracheary element differentiation is considered an irreversible process. What is the primary cytological reason for this? 

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#Question id: 37894

#Plant Biotechnology

Match the term with the correct definition regarding cell regeneration pathways:

List I (Process)	List II (Description)
A. Organogenesis	1. Direct formation of embryos from somatic cells
B. Somatic Embryogenesis	2. Dedifferentiation → callus → redifferentiation → organs
C. Proliferative Cycle	3. Daughter cells are copies of mother, differentiate without division
D. Quantal Cycle	4. Daughter cells differ from mother, less likely to differentiate