Which of the following properties is (are) characteristic of a benign tumor?

a. well differentiated              b. localized to tissue of origin             c. metastatic               

d. promotes angiogenesis        e. surrounded by a fibrous capsule

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#Question id: 38749

#Plant Biotechnology

Q. Assertion (A): Protoplasts are initially fragile and cannot undergo mitosis immediately after isolation. 

Reason (R): The enzymatic degradation of the cell wall during isolation removes the structural constraint required for organized cell division.

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#Question id: 38751

#Plant Biotechnology

Q.Assertion (A): Fast-growing protoplasts act as a "feeder layer" in co-culture experiments. 

Reason (R): They compete with slow-growing protoplasts for limited carbon sources, thereby forcing the slow-growing cells to adapt faster.

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#Question id: 38753

#Plant Biotechnology

Q. Which staining method is used specifically to detect the onset of cell wall formation in cultured protoplasts? 

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#Question id: 38754

#Plant Biotechnology

Q. A researcher observes protoplasts under a fluorescence microscope and sees a bright yellow-green glow. This indicates that:

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#Question id: 38755

#Plant Biotechnology

Q. In the "Evans blue exclusion" method, what is the appearance of a dead protoplast?

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#Question id: 38756

#Plant Biotechnology

Q. Why does FDA (Fluorescein diacetate) only accumulate in viable protoplasts?