There are two classes of release factors for translation termination. Choose correct statements

A. Class I release factors recognize the stop codons and trigger hydrolysis of the peptide chain from the tRNA in the P-site.

B. Prokaryotes have two class I release factors called RF1 and RF2. RF1 recognizes the stop codon UGA, UAA and RF2 recognizes the stop codon UAG and UAA.

C. In eukaryotic cells, there is a single class I release factor called eRF1 that recognizes all three stop codons.

D. Class II release factors stimulate the dissociation of the ribosome after release of the polypeptide chain.

TLS Online TPP Program

#Question id: 29485

#Unit 6. System Physiology – Plant

Which of the following is not an example of Isoprenoid cytokinins

TLS Online TPP Program

#Question id: 29486

#Unit 6. System Physiology – Plant

Which of the following is examples of Aromatic cytokinins 

a. ortho-Topolin (oT), meta-Topolin (mT), Benzyladenine (BA

b. ortho-Methoxytopolin, meta-Methoxytopolin

c. trans-Zeatin (tZ), Dihydrozeatin (DZ)

d. cis-Zeatin, trans-Zeatin (tZ)

Which of the following is correct

TLS Online TPP Program

#Question id: 29487

#Unit 6. System Physiology – Plant

Some statement is given related to cytokinin

a. iP and tZ are active, and their derivatives are abundant

b. iP and tZ are inactive, and they are not abundant

c. iP and tZ are susceptible to degradation by CK oxidase (CKX). 

d. all cZ‐type CKs are derived from tRNA degradation in cZ‐abundant plant species

Which of the following is INCORRECT

TLS Online TPP Program

#Question id: 29488

#Unit 6. System Physiology – Plant

iPRTP or iPRDP is converted to ZTP or ZDP respectively by

TLS Online TPP Program

#Question id: 29489

#Unit 6. System Physiology – Plant

The ribotide and riboside forms of trans-zeatin can be interconverted, and free transzeatin can be formed from the ribotide by the

TLS Online TPP Program

#Question id: 29490

#Unit 6. System Physiology – Plant

Some statement is given related to cytokinin regarding location, expression and synthesis and concentration

a. IPT1, IPT3, IPT5, and IPT8 are located in plastids

b. KNOX gene expression increases cytokinin levels in the shoot with the help of IPT7

c. Cytokinin Primary site of synthesis -- root tips.

d. High concentrations -- immature seeds and developing fruits

Which one of the following options represents the combination of all correct statements?