Which of the following is the largest root parasite
Rafflesia
Monotrapa
Areuthobium
Pistia
D.
Pistia
Water lettuce is among the world's most productive freshwater aquatic plants and considered an invasive species. In waters with high nutrient content, particularly those that have been contaminated with human loading of sewage or fertilizers, water lettuce can often exhibit weedy overgrowth behavior. It may also commonly become weedy in hydrologically altered systems such as canals and reservoirs.
Assertion: Tapeworm, roundworm and pinworm are endoparasites of human intestine.,
Reason: Improperly cooked food is the source of all intestinal infections.
If both Assertion and Reason are true and Reason is the correct explanation of Assertion
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
If Assertion is true but Reason is false
If both Assertion and Reason are false.
Assertion: Coaccrvates are believed to be the precursors of life.
Reason: Coaccrvates were self-duplicating aggregates of proteins surrounded by lipid molecules
If both Assertion and Reason are true and Reason is the correct explanation of Assertion
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
If Assertion is true but Reason is false
If both Assertion and Reason are false.
Assertion: Fish meal is a rich source of protein for cattle and poultry.
Reason: Fish meal is produced from non-edible parts of fishes like fins, tail etc.
If both Assertion and Reason are true and Reason is the correct explanation of Assertion
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
If Assertion is true but Reason is false
If both Assertion and Reason are false.
How many different types of gametes can be formed by F1 progeny, resulting from the following cross
AA BB CC x aa bb cc
3
8
27
64
Assertion: Agricultural output increased several times after introduction of DDT.
Reason: DDT was the first insecticide used on a wide scale.
If both Assertion and Reason are true and Reason is the correct explanation of Assertion
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
If Assertion is true but Reason is false
If both Assertion and Reason are false.
The treatment of snake-bite by antivenom is an example of
artificially acquired active immunity
artificially acquired passive immunity
naturally acquired passive immunity
specific natural immunity.
DNA is present in
chromosomes and dictyosomes
chloroplasts and lysosomes
mitochondria and chloroplasts
mitochondria and endoplasmic reticulum.
Potato and sweet potato
have edible parts which are homologous organs
have edible parts which are analogous organs
have been introduced in India from the same place
are two species of the same genus.
Somaclonal variation can be obtained by
application of colchicine
irradiation with gamma rays
tissue culture
hybridisation.
