As well as synthesizing the transcript, RNA polymerase performs two proofreading functions on that growing transcript;

i. Pyrophosphorolytic editing

ii. Hydrolytic editing

Choose correct processes accordingly,

A. The polymerase backtracks by one or more nucleotides and cleaves the RNA product, removing the error-containing sequence.

B. In this, the enzyme uses its active site, in a simple back-reaction,

C. Catalyze the removal of an incorrectly inserted ribonucleotide, by reincorporation of PPi

D. The enzyme can then incorporate another ribonucleotide in its place in the growing RNA chain.

TLS Online TPP Program

#Question id: 29502

#Unit 6. System Physiology – Plant

Some of the Following statement is given regarding the cry1 and cry2 

a. cry1 is more stable than cry2

b. cry2 is more stable than cry1

c. cry1 involved in the setting of the circadian clock 

d. cry2 plays a major role in the induction of flowering

Which of the following is correct 

TLS Online TPP Program

#Question id: 3568

#Unit 8. Inheritance Biology

You begin to study a novel plant species and discover that this diploid plant has 16 chromosomes. How many linkage groups would you expect to find?

TLS Online TPP Program

#Question id: 11085

#Unit 7. System Physiology – Animal

The diagrams show changes in the partial pressures of oxygen and carbon dioxide as blood flows from the arterial end to the venous of the pulmonary capillaries. Which diagram best depicts the normal relationship between Po2 (red line) and Pco2 (green line) during resting conditions?

TLS Online TPP Program

#Question id: 9231

#Unit 9. Diversity of Life Forms

Movement corridors can be harmful to certain species because they ________.

TLS Online TPP Program

#Question id: 2729

#Unit 2. Cellular Organization

Antibiotics such as Ciprofloxacin and Flouroquinolines work by inhibiting a specific enzyme. This enzyme is normally necessary to relieve the torsional strain that is caused by unwinding of the helix. What is the name of this enzyme?