Which of the following statements are correct regarding the Para Rubber tree (Hevea brasiliensis)?

1.It belongs to the family Euphorbiaceae.

2.Latex is obtained primarily from the xylem vessels of the tree.

3.The process of harvesting latex is known as 'tapping'.

4.Vulcanization involves heating rubber with sulfur to improve its elasticity and strength.

Choose the correct answer from the options given below:

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? 

TLS Online TPP Program

#Question id: 38074

#Plant Biotechnology

Regarding vascular connections with the callus or explant, which statement is true? 

TLS Online TPP Program

#Question id: 38075

#Plant Biotechnology

Why is a somatic embryo usually easily separated from the callus or explant?