TLS Online TPP Program

#Question id: 10804


Major types of alkaloids, their amino acid precursors, and well-known examples of each type;

Alkaloid class

Biosynthetic precursor

Examples

A. Pyrrolidine

i. Lysine

a. Coniine

B. Tropane

ii. Ornithine

b. Retrorsine

C. Piperidine

 

c. Lupinine

D. Pyrrolizidine

 

d. Nicotine

E. Quinolizidine

 

e. Atropine and Cocaine

Which of the following combination from the given table is correct?

#I Life Science/ Life Sciences Group – I-V
  1. A-i-b;  B-ii-c;  C-ii-d;  D-i-a;  E-i-e
  2. A-i-c;  B-ii-a;  C-i-e;  D-ii-d;  E-i-b
  3. A-ii-e;  B-i-d;  C-i-b;  D-ii-c;  E-i-a
  4. A-ii-d;  B-ii-e;  C-i-a;  D-ii-b;  E-i-c
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TLS Online TPP Program

#Question id: 7290

#SCPH01 Biochemistry

Following figure regarding to regulatory network in the Arabidopsis shoot meristem stem-cell niche.

A. The transcription factor WUS is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the CLV3.

B. The transcription factor CLV3 is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the WUS.

C. Secreted CLV3 protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses WUS transcription.

D. Secreted WUS protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses CLV3 transcription.

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 7290

#I Life Science/ Life Sciences Group – I-V

Following figure regarding to regulatory network in the Arabidopsis shoot meristem stem-cell niche.

A. The transcription factor WUS is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the CLV3.

B. The transcription factor CLV3 is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the WUS.

C. Secreted CLV3 protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses WUS transcription.

D. Secreted WUS protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses CLV3 transcription.

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 7290

#SCPH06 I Botany

Following figure regarding to regulatory network in the Arabidopsis shoot meristem stem-cell niche.

A. The transcription factor WUS is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the CLV3.

B. The transcription factor CLV3 is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the WUS.

C. Secreted CLV3 protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses WUS transcription.

D. Secreted WUS protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses CLV3 transcription.

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 7290

#SCPH28 | Zoology

Following figure regarding to regulatory network in the Arabidopsis shoot meristem stem-cell niche.

A. The transcription factor WUS is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the CLV3.

B. The transcription factor CLV3 is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the WUS.

C. Secreted CLV3 protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses WUS transcription.

D. Secreted WUS protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses CLV3 transcription.

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 7291

#SCPH01 Biochemistry

Five different genes are known to specify floral organ identity in Arabidopsis: APETALA1 (AP1), APETALA2 (AP2), APETALA3 (AP3), PISTILLATA (PI), and AGAMOUS (AG).

Which one of the following statement is incorrect?

TLS Online TPP Program

#Question id: 7291

#I Life Science/ Life Sciences Group – I-V

Five different genes are known to specify floral organ identity in Arabidopsis: APETALA1 (AP1), APETALA2 (AP2), APETALA3 (AP3), PISTILLATA (PI), and AGAMOUS (AG).

Which one of the following statement is incorrect?