Populational change is Darwin’s hypothesis that evolution occurs by changes in the proportions (frequencies) of different variant kinds of individuals within a population.

TLS Online TPP Program

#Id: 9284

#XL - S Microbiology

O2‐binding plant protein Lb plays an active role in regulating and delivering O2 in the infected cells

Bacterial respiration is the major O2 sink

TLS Online TPP Program

#Id: 9321

#XL - T Zoology

Low intracellular Ca2+ concentration is sensed by a class of Ca2+ -binding proteins known as guanylate cyclase–activating proteins.

TLS Online TPP Program

#Id: 10675

#XL - R Botany

TLS Online TPP Program

#Id: 8032

#XL - Q Biochemistry

Ornithine and citrulline, which are not found in proteins, are intermediates in the biosynthesis of arginine and in the urea cycle.

TLS Online TPP Program

#Id: 10764

#XL - R Botany

Union of stamen

Stamens of flower may be united with other members (adhesion) such as petals or among themselves (cohesion)

Adhesion of stamen

When stamens are attached to the petals, they are epipetalous  e.g., brinjal, Datura (solanaceae)

Adhesion of stamen

when attached to the perianth called epiphyllouse.g., lily (liliaceae), Asperagus (asparagaceae)

Adhesion of stamen

Stamen may unite with gynoecium called gynandrous, it is also called gynandrium or gynostegium' e.g., calotropis (apocynaceae)