Cry-1 endotoxins obtained from Bacillus thuringiensis are effective against
mosquitoes
flies
nematodes
boll worms
What is the best pH of the soil for cultivation of plants?
3.4-5.4
6.5-7.5
4.5-8.5
5.5-6.5
In a standard ECG, which one of the following alphabets is the correct representation of the respective activity of the human heart?
R- repolarisation of ventricles
S-start of systole
T-end of diastole
P-depolarisation of the atria
Farmers in a particular region were concerned that pre-mature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield?
Frequent irrigation of the crop
Treatment of the plants with cytokinins along with a small dose of nitrogenous fertilizer
Removal of all yellow leaves and spraying the remaining green leaves with 2,4,5-trichlorophenoxy acetic acid
Application of iron magnesium to promote synthesis of chlorophyll
Which one thing is not true about antibiotics?
The term “antibiotic” was coined by Selman Waksman in 1942
First antibiotic was discovered by Alexander Flemming
Each antibiotic is effective only against one particular kind of germ
Some persons can be allergic to a particular antibiotic
Polyethylene glycol method is used for
gene transfer without a vector
biodiesel production
seedless fruit production
energy production from sewage
Which one of the micro organism is used for production of citric acid in industries?
Lactobacillus bulgaris
Penicillium citrinum
Aspergillus niger
Rhizopus nigricans
Human insulin is being commercially produced from a transgenic species of
Escherichia
Mycobacterium
Rhizobium
Saccharomyces
Gel electrophoresis is used for
cutting of DNA into fragments
separation of DNA fragments according to their size
construction of recombinant DNA by joining with cloning vectors
isolation of DNA molecule
Introduction of food plants developed by genetic engineering is not desirable because
economy of developing countries may suffer
these products are less tasty as compared to the already existing products.
this method is costly
There is a danger of introduction viruses and toxins with introduced crops