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Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: Somatic embryogenesis in plants is a twostep process comprising of embryo initiation followed by embryo production.
Reason: Embryo initiation is independent of the presence of 2, 4-dichlorophenoxyacetic acid, whereas embryo production requires a high concentration of 2, 4-dichlorophenoxyacetic acid.
Consider the following statements regarding recurrent type apomixis and choose the correct answer:
1. There is meiosis during the formation of megaspore
2. The embryo sac is diploid in nature
3. The embryo sac never develops from a cell of the archesporium
4. The development of embryo from a cell of an embryo sac other than egg is known as apospory
Consider the following statements and choose the correct answer:
1. In Oenothera type of monosporic embryo sac, the embryo develops from the micropylar megaspore of the tetrad
2. Antipodal cells are altogether absent in Oenothera type
3. The genus Trapa forms an 8-nucleate embryo sac of the Polygonurn type
4. Oenothera type of embryo sac development has been found to be a characteristic feature of the entire family Onagraceae
Consider the following statements regarding poloyembryony and choose the correct answer:
1. False polyembryony includes the development of two or more embryo sacs within the Same nucellus, and the embryos are derived from different embryo sacs
2. In cleavage polyembryony, the zygote instead of giving rise to one embryo produces embryos by cleavage
3. According to Jeffrey (1895), in Erythronium americanum the "embryogenic mass" forms two or three embryos
What is the result of compiling and running the following code? class Base{ public Base(){ System.out.print("Base"); } } public class Derived extends Base{ public Derived(){ this("Examveda"); System.out.print("Derived"); } public Derived(String s){ System.out.print(s); } public static void main(String[] args){ new Derived(); } }
If class A is derived from another derived class B which is derived from class C, which class will have maximum level of abstraction?
When a class is derived from another derived class, the newly derived class
A class D can be derived from a class C, which is derived from a class B, which is derived from a class A
Consider the following statements with reference to Kant and select the correct option.
1. Kant rejects the notion that space and time are concepts which have been derived from our experience of relations between things.
2. Kant accepts the notion that space and time are concepts which have been derived from our experience of relations between things.
3. Kant rejects the notion that space and time are concepts which are not derived from our experience of relations between things.
When the embryo is formed from any cell of the embryo sac other than the egg, the phenomena is called as