Red and far-red lights are perceived by plants through various photoreceptors including phytochromes. What is the effect of red light in a variety of higher and lower plants?

a) It promotes germination and growth

b) It promotes de-etiolation

c) promotes internode elongation and flowering

d) It promotes the production of anthocyanin

e) Inhibits orientation of chloroplasts to directional dim light

Which of the following statements of effect of red light is incorrect?

TLS Online TPP Program

#Question id: 10416

#Unit 6. System Physiology – Plant

Phytochromes  involved  in  red/far‐red  response  are  dimeric  chromoproteins contains N-terminal and C-terminal moiety have domains, which perform various functions such as;

a) Photochromobillin attach with the N-terminal GAF domain, it is an enzyme which causes isomerisation activity in the phytochromobilin

b) PAS-GAF-PHY is a photosensory domain

c) PAS domain perform the lyase activity at C-14 and C-15, which creates a double bond

d) PRD is PAS related domain which involve in import of Phy-B in the nucleus

Which of the following combinations of domain functions is incorrect?

TLS Online TPP Program

#Question id: 12894

#General Aptitude

A solid has 12 vertices and 30 edges. How many faces does it have?

TLS Online TPP Program

#Question id: 598

#Unit 1. Molecules and their Interaction Relevant to Biology

Which might be a method used for distinguishing among several mechanistic possibilities in a multi-substrate reaction?

TLS Online TPP Program

#Question id: 745

#Unit 1. Molecules and their Interaction Relevant to Biology

The structure of RNA differs from that of DNA, as RNA contains:

TLS Online TPP Program

#Question id: 728

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the following tile peaks with corresponding circular dichroism spectra

A. Alpha helix	I. negative bands at 222 nm and 208 nm and a positive one at 190 nm.
B. Beta sheet	II. negative band at 218 nm and a positive one at 196 nm.
C. Random coil	III. positive band at 212 nm and a negative one around 195 nm.