Concentration of DDT is highest in-
A. Primary consumer
B. Producers
C. Top consumer
D. Decomposers
Ans.C. Top consumer
Bhopal gas tragedy was related to-
A. Methane
B. Carbon mono oxide
C. Methyl iso cyanide
D. Sulphur dioxide
Ans. C. Methyl iso cyanide
Gene composed of -
A. Amino acid
B. Polynucleotide
C. Fatty acid
D. Nitrogen base
Ans.B. Polynucleotide
Suspensory ligaments are found in-
A. Brain
B. Eyes
C. Liver
D. Pancrease
Ans. B. Eyes
Dolly sheep was obtained by-
A. Cloning of udder cell (somatic cell) fused with unnucleated oocyte
B. Cloning of gametes
C. Tissue culture
D. None
Ans. A. Cloning of udder cell (somatic cell) fused with unnucleated oocyte
First transgenic plant -
A. Potato
B. Tomato
C. Tobacco
D. Maize
Ans. C. Tobacco
Life span of worker honey bee -
A. 30 days
B. 15 days
C. 90 days
D. 10 days
Ans. . C. 90 days
Main reason of disturbances in biodiversity -
A. Green house effect
B. Hunting
C. Soil erosion
D. Destruction of natural habitat
And. D. Destruction of natural habitat
Are best method to preserve the wild relatives of plant:
A. By growing then in natural habitats
B. Gene library
C. By storing seeds
D. Cryopreservation
Ans. A. By growing then in natural habitats
Percentage energy transferred to higher tropic level in food chain is -
A. 1%
B. 10%
C. 90%
D. 100%
Ans. B. 10%
Ans. B. 10%