Florigen
Since the 1930s it has been known that plants sense light (and daylength in particular) in the leaves and send a signal to the shoots to initiate flowering. The unknown plant growth substance was named florigen but was not identified. In 2007 George Coupland at the max Planck institute and Colin Turnbull at Imperial College london identified a protein called ft produced from the flowering locus t gene which behaved precisely as predicted for florigen.
Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like or..
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..
This tutorial looks at the adaptations of freshwater plants for them to thrive in still water habitats. Familiarize your..
The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..
Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Ov..
Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..