The biomass available for consumption by the herbivores the decomposers is called
net primary productivity
secondary productivity
standing crop
standing crop
A.
net primary productivity
Net Primary productivity (NPP) is the weight of organic matter stored by producers in a unit area/ volume per unit time.NPP is equal to the rate of organic matter created by photosynthesis minus the rate of respiration and other loses. Stored biomass is transferred from one trophic level to another trophic level. Secondary productivity is the rate of energy storage at consumers levels-herbivores, carnivorous and decomposers.
Gross Primary productivity (GPP) is referred as total rate of photosynthesis including the organic matter used up in respiration during the measurement period.
Which one of the following statements is correct with respect to AIDS?
The HIV can be transmitted through eating food together with an infected person
Durg addicts are least susceptible to HIV infection
AIDS patients are being fully cured cent percent with proper care and nutrition
AIDS patients are being fully cured cent percent with proper care and nutrition
Select the correct statement from the ones given below with respect to dihybrid cross.
Tightly linked genes on the same chromosome show higher recombinations
Genes far apart on the same chromosome show very few recombinations
Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.
Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.
Which one of the following palindromic base sequences in DNA can be easily cut at about the middle be some particular restriction enzyme?
5'-CGTTCG -3'
3'-ATCCTA-5'
5'-GATATG-3'
3'-CTACTA-5'
5'-GAATTC-3'
3'CTTAAG-5'
5'-GAATTC-3'
3'CTTAAG-5'
A common biocontrol agent for the control of plant diseases is
Baculovirus
Bacillius thuringiensis
Glomus
Glomus
Breeding of crops with high levels of minerals, vitamins and proteins is called
somatic hybridization
biofortification
biomagnification
biomagnification
Which one of the following is an example of ex- situ conservation?
Wildlife sanctuary
Seed bank
Sacred groves
Sacred groves
The one aspect which is not a salient feature of genetic code is its being
degenerate
ambiguous
universal
universal
Which one of the following is used as a vector for cloning the gene into higher organisms?
Baculovirus
Salmonella typhimurium
Rhizopus nigricans
Rhizopus nigricans
