Multiple Choice QuestionsSacred groves are specially useful in
Generating environmental awareness
Preventing soil erosion
Year-round flow of water in rivers
Year-round flow of water in rivers
The rate of formation of new organic matter by rabbit in a grassland is called
net productivity
secondary productivity
net primary productivity
net primary productivity
Read the following four statements:
1. Colostrum is recommended for the new born because it is rich in antigens.
2. Chikengunya is caused by a Gram negative bacterium.
3. Tissue culture has proved useful in obtaining virus-free plants.
4. Beer is manufactured by distillation of fermented grape juice.
How many of the above statements are wrong?
Two
Three
Four
Four
Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells).
Both sense and anti-sense RNA
A particular hormone
An antifeedant
An antifeedant
A.
Both sense and anti-sense RNA
Antisense RNA can be produced by inverting a cDNA copy of an mRNA with respect to the promoter in an expression vector. This yields a full length complementary copy of mRNA sequence. Antisense RNA molecule are thought to interact with mRNA molecule by base pairing to form double stranded RNA.
Biolistics (gene-gun) is suitbale for
Disarming pathogen vectors
Transformation of plant cells
Constructing recombinant DNA by joing whith vectors
Constructing recombinant DNA by joing whith vectors
In genetic engineering, the antibiotics are used
as selectable markers
to select healthy vectors
as sequences from where replicaton starts
as sequences from where replicaton starts
The idea of mutations was brought forth by
Hugo de Vries, who worked on evening primrose
Gregor Mendel, who worked on Pisum sativum
Hardy Weinberg, who worked on allele frequencies in a population
Hardy Weinberg, who worked on allele frequencies in a population
What is it that forms the basis of DNA fingerprinting?
The relative proportions of purines and pyrimidines in DNA
The relative difference in the DNA occurrence in blood, skin and saliva
The relative amount of DNA in the ridges and grooves of the fingerprints
The relative amount of DNA in the ridges and grooves of the fingerprints
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