Which of the following plants are used as green manure in crop fields and in sandy soils?
Saccharum munja and Lantana camara
Dichanthium annulatum and Azolla nilotica
Crotalaria juncea and Alhagi camelorum
Calotropis procera and Phyllanthus niruri
Triticum vulgare has been found to be presently evolved as
diploid
tetraploid
pentaploid
hexaploid
the deficiency of nitrogen
a bacterium
a fungus
a virus
Jumping genes in maize were discovered by
Hugo de Vries
Barbara McClintock
TH Morgan
Mendel
B.
Barbara McClintock
Barbara McClintock discovered jumping genes. These are also known as movable genetic elements. They can move from one location to another in the chromosome.
R W Hedges and A E Jacob introduced the term transposon.
Mutation was introduced by Hugo de Vries.
Gene theory was proposed by T H Morgon.
Gregor Johann Mendel is known as Father of Genetics.
In honey bee, royal jelly is secreted from :
corp gland
wax gland
pharyngeal gland
salivary gland
The semi dwarf wheat which was instrumental in increasing
wheat production was developed by
Alexander von Humboldt
Paul Ehrlich
Dr. Kurien
Edward Jenner
Edward Jenner
Select the wrongly matched pair
Fibre - Sunhemp
Spice - Belladonna
Edible oil - Groundnut
Fodder - Trifolium
Fodder - Trifolium