Practice Questions

TLS Online TPP Program

#Question id: 98

The elasticity and resistance to compression of connective tissue is due to

#Applied Microbiology

the branching of the glycosaminoglycans there.
the glycosidic linkage to the serine of proteins in the glycosaminoglycans.
the carboxyl and sulfated groups in the glycosaminoglycans.
the rigid structure of the glycosaminoglycans.

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TLS Online TPP Program

#Question id: 37829

#Plant Biotechnology

Assertion (A): Plant tissue culture is possible because even highly mature plant cells can dedifferentiate into meristematic cells.

Reason (R): Mature animal cells cannot change back into a proliferative state once they are fully differentiated.

TLS Online TPP Program

#Question id: 37830

#Plant Biotechnology

Assertion (A): Plant tissue culture requires aseptic conditions.

Reason (R): Contamination by microbes can compete with plant tissues for nutrients and inhibit growth.

TLS Online TPP Program

#Question id: 37831

#Plant Biotechnology

Assertion (A): In plant tissue culture, only tissues with an intact membrane system and viable nucleus can regenerate into a whole plant.

Reason (R): The presence of chloroplasts is essential for dedifferentiation and regeneration.

TLS Online TPP Program

#Question id: 37832

#Plant Biotechnology

What is cellular totipotency in plants?

TLS Online TPP Program

#Question id: 37833

#Plant Biotechnology

Which of the following are examples of totipotent cells?

TLS Online TPP Program

#Question id: 37834

#Plant Biotechnology

Two key phenomena in cellular totipotency that allow plant regeneration are: