Assertion (A): Tracheary element differentiation is considered an irreversible process. 

Reason (R): During differentiation, the cells lose their nuclei and cytoplasm, preventing dedifferentiation or redifferentiation.

Select the correct option:

TLS Online TPP Program

#Question id: 38068

#Plant Biotechnology

Which of the following explants is Classically associated with Indirect Somatic Embryogenesis in Daucus carota (Carrot)? 

TLS Online TPP Program

#Question id: 38069

#Plant Biotechnology

Match the Terminology (List I) with its Description/Example (List II):

List I (Terminology)	List II (Description/Example)
A. PEDC	I. Cells requiring induction to re-enter mitotic cycle & form callus
B. IEDC	II. Leaf tissue of Coffee
C. Direct Embryogenesis	III. Cells already committed to embryonic development
D. Indirect Embryogenesis	IV. Scutellum of Barley/Rice

Choose the correct option: 

TLS Online TPP Program

#Question id: 38070

#Plant Biotechnology

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): Direct somatic embryogenesis is generally rarer than indirect somatic embryogenesis.

Reason (R): Direct embryogenesis occurs from "Pre-Embryonic Determined Cells" (PEDCs) which are found only in specific embryonic tissues like the scutellum or nucellus.

In light of the above statements, choose the correct answer: 

TLS Online TPP Program

#Question id: 38071

#Plant Biotechnology

Given below are two statements:

Statement I: In Indirect Somatic Embryogenesis, the explant first proliferates into unorganized callus tissue before differentiating into embryos.

Statement II: IEDCs (Induced Embryogenic Determined Cells) need only a "permissive" signal to start embryogenesis and do not require dedifferentiation.

Choose the most appropriate answer: 

TLS Online TPP Program

#Question id: 38072

#Plant Biotechnology

Based on the "Origin" characteristic, which of the following correctly distinguishes a somatic embryo from a shoot bud? 

TLS Online TPP Program

#Question id: 38073

#Plant Biotechnology

Which structure is described as "Bipolar," possessing both shoot and root poles?