TRB PG Botany ' பாடத்தில்'A' Series question paper 2 வினாக்கள் குறித்து சென்னை உயர்நீதிமன்றம் அளித்த தீர்ப்பின் முக்கிய பகுதிகள்
IN THE HIGH COURT OF JUDICATURE AT MADRAS
.
4.It is brought to my notice by the learned Special Government Pleader appearing for the respondents that the correctness of the said question No.31 has been already decided by this Court in a earlier writ petition. Hence, further adjudication is not required in respect of the key answer for this question.
5.Now, what remains to be adjudicated upon is question Nos.37 & 50 in subject Botany 'A' Series.
Question No.37 reads as follows:-
76.The development of first foliage leaves after seed
germination
A) Cotyledonary leaf B) Prophyll
C) Hypophy II D) Scale leaf
6.According to the Teachers Recruitment Board, option A (Cotyledonary leaf) is the right answer. But, according to the petitioner, option B (Prophyll) is the right answer.
7.Today, three experts in the said subject are present before this Court who are Dr.Dorcus (Professor), from Quaid-e-Millath Government College, Chennai 600 002; Dr.A.Subashini (Professor), from Quaid-e-Millath Government College, Chennai 600 002 and Mrs.T.Vimala (Professor), from Quaid-e-Millath Government College, Chennai 600 002. This Court had the benefit of hearing them also. According to them, option 'A' (Cotyledonary leaf) is the right answer. Whereas, according to the petitioner, option 'B' (Prophyll) is the right answer.
8.The petitioner would submit that during seed germination the seeds are produced is two major parts such as radicle and plumule. The radicle is called as embroyonic root and plumule is called as Embryonic shoot. The embryonic shoot will produce foliage leaf (which under goes photosysthesis) is called Prophyll, (pro=first, Phyll=leaf). Therefore, according to the petitioner, the first leaf after germination is only Prophyll.
9.It is the further case of the petitioner that cotyledonary leaf cannot undergo photosynthesis. A cotyledon of germinated seed provides energy for germinating seeds. Therefore, according to the petitioner, option A (Cotyledonary leaf) cannot be the right answer. In this regard, the petitioner has placed reliance on a book titled as Objective Botany authored by Dr.N.P.Saxena wherein, the words Cotyledonary leaf is defined.
10.Based on this, the learned counsel for the petitioner would submit that according to her, since Cotyledonary leaf cannot undergo photosynthesis, it cannot be the correct answer. She would further submit that after germination, the first leaf which is produced is only Prophyll, whereas, Cotyledonary leaf is produced at the time of germination itself.
11.But, the experts who are present in Court would refute the said submission made by the learned counsel for the petitioner. According to them, Prophyll leaf is the larger term into which Cotyledonary leaf will fall. According to them, Cotyledonary leaf though initially, do not have chlorophyll to undergo photosynthesis later on, they develop chlorophyll and thus undergo photosynthesis. According to them, the earliest leaf which is produced after seed germination is only Cotyledonary leaf . In this regard, they have referred a standard book titled Classification of Flower Plants authored by S.N.Pandey wherein, in page 127, it is stated as follows:-
The cotyledons, which are then termed epigeal, become green and spread to the light, and are the first assimilating leaves.
12.In yet another book titled as Plant Anatomy, authored by Mr.Pande, it is stated that the origin of shoot organization is found in the hypocotyl and cotyledons are the first leaves. From these two books, the Experts would submit that option A (Cotyledonary leaf) is the right answer.
13.I have considered the above submissions.
14.I agree with the opinion of the experts who are present in Court. As they have explained to the Court, it is crystal clear that Cotyledonary leaf is the earliest leaf produced namely after germination. Initially, these leaves do not have chlorophyll but they develop chlorophyll later on and therefore, they also undergo the photosynthesis. In such view of the matter, I do not find any reason to disagree with the opinion of the Experts.
15.The next question to be decided in this writ petition is Question No.50 which reads as follows:-
50.Before mitotic division, cells get enlarged into _____ times that of its original size:-
A) 2 B) 8
C) 4 D) 16
16.According to the Teachers Recruitment Board, option A (2) is the right answer. But, according to the petitioner, option C (4) is the right answer.
17.According to the petitioner, all the living organisms undergo two types of cell division such as mitotic cell division and meiosis cell division. Mitotic cell division takes place in vegetative cells and Meiosis cell division takes place in reproductive cells.
18.Each mitotic cell division takes place in two major steps such as A)Interphase and B)Mitotic Phase. The petitioner further states that during interphase the cell gets prepared to produce two daughter cells by giving equal number of chromosomes to the daughter cells. During interphase the cell replicate the number of chromosomes into two times and the size of the cell gets enlarged into four times in order to replicate the chromosomes into double. Thus, according to the petitioner, option C is the right answer.
19.But the experts, would refute the said submission made by the learned counsel for the petitioner. According to them, during interphase, no cell division takes place, actually, only during mitotic phase it takes place. In this regard, they refer to an authoritative book Cell and Molecular Biology written by E.D.P.De Roberties, E.M.F Robertis wherein, at page No.403, it is stated that Mitosis represents only a small part of the life cycle of a cell (about 1 hour in most cells). The cell spends most of its lifetime in interphase, the period during which it doubles in size and replicates its DNA. There are five phases. The first phase is G1 ; the second phase is S; the third phase is G2 and the fourth phase is mitosis and the fifth phase is G mitosis. According to the petitioner, before mitotic division, cells get enlarged into four times that of its original size. But a reading of the book does not say so. In view of the opinion of experts, which they have explained clearly as if, it was a classroom at University level, this Court, after having understood the same, finds no option but to agree with the experts. Thus, the challenge made by the petitioner has to fail.
21.In view of all the above, the writ petition fails and accordingly, the same is dismissed. No costs. Interim order already granted shall stand vacated. Consequently, connected miscellaneous petition is closed.
03.07.2014
Sent from my iPad
கருத்துகள் இல்லை:
கருத்துரையிடுக