Phototropic curvature is the result of uneven distribution of
gibberellin
phytochrome
cytokinins
cytokinins
Male and female gametophytes are independent and free - living in
mustard
castor
Pinus
Pinus
The technical term used for the androecium in a flower of China rose (Hibiscus rosa siensis( is
monadelphous
diadelphous
polyandrous
polyandrous
During mitosis ER and nucleolus begin to disappear at
late prophase
early metaphase
late metaphase
late metaphase
The free-living, anaerobic nitrogen - fixer is
Beijerinckia
Rhodospirillum
Rhizobium
Rhizobium
B.
Rhodospirillum
Rhodospirillum is free - living, anaerobic, nitrogen fixer. Both Beijerinckia and Azotobacter are free-living, nitrogen - fixing, aerobic microbes. Rhizobium is a symbiotic, nitrogen-fixer.
What is true about RBCs in humans?
They carry about 20-25 percent of CO2
They transport 99.5 percent of O2
They transport about 80 percent oxygen only and the rest 20 percent of it is transported in dissolved state in blood plasma
They transport about 80 percent oxygen only and the rest 20 percent of it is transported in dissolved state in blood plasma
The main arean of various types of activities of a cell is
Plasma membrane
mitochondrion
cytoplasm
cytoplasm
The principal nitrogenous exceretory compound in humans is synthesised
in kidneys but eliminated mostly through the liver
in kidneys as well as eliminated by kidneys
In liver and also eliminated by the same through bile
In liver and also eliminated by the same through bile