Practice Questions

TLS Online TPP Program

#Question id: 2850

CCA-adding enzymes add a specific sequence without a template because

#Unit 2. Cellular Organization

CCA-adding enzymes have two active site that uses a similar two-metal ion mechanism of catalysis
It only recognise A and C
It only recognise G and U
Specificity for the addition of C versus A is not controlled by changes in the active site as each base is added

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TLS Online TPP Program

#Question id: 19069

#Unit 6. System Physiology – Plant

Pathogenesis included except__

TLS Online TPP Program

#Question id: 27357

#Unit 6. System Physiology – Plant

Chlorophyll can exist in three state in many state which state have no unpaired electron are found

TLS Online TPP Program

#Question id: 27358

#Unit 6. System Physiology – Plant

Choose the correct statement regarding singlet and triplet state

1. singlet state is short lived, net angular momentum and spin quantum number, s is zero

2. singlet state is long lived, net angular momentum and spin quantum number, s is one

3. Triplet state is long lived , net angular momentum and spin quantum number, s is one

4. Triplet state is short lived net angular momentum and spin quantum number, s is zero

TLS Online TPP Program

#Question id: 28069

#Unit 6. System Physiology – Plant

Various responses and different set of pigments are involved on different range of wavelength which of the following concerned with 610 nm-700 nm

(a) Color name – Far-red

(b) Photopigments – Chlorophylls & Phytochromes

(c) Responses – Photosynthesis, Photomorphogenesis, Secondary metabolism, Shade avoidance, Photoperiodism

Which of the following is correct

TLS Online TPP Program

#Question id: 28070

#Unit 6. System Physiology – Plant

Water splitting/ oxygen evolution is initiated by presence of

TLS Online TPP Program

#Question id: 28071

#Unit 6. System Physiology – Plant

During Water splitting/ oxygen evolution P680+ is directly reduced by