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
Consider the following statements about biomedical technologiesa. During open heart surgery blood is circulated in the heart-lung machineb. Blockage in coronary arteries is removed by angiographyc. Computerized Axial Tomography (CAT) shows detailed internal structure as seen in a section of body.d. X-ray provides clear and detailed images of organs like prostate glands and lungsWhich two of the above statements are correct?
B and D
C and D
A and C
A and B
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
Human insulin is being commercially produced from a transgenic species of
Escherichia
Mycobacterium
Rhizobium
Saccharomyces
Which one of the following is being tried in India as a biofuel substitute for fossil fuels?
Jatropha
Azadirachta
Musa
Aegilops
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
Which one of the micro organism is used for production of citric acid in industries?
Lactobacillus bulgaris
Penicillium citrinum
Aspergillus niger
Rhizopus nigricans
Which one of the following proved effective for biological control of nematodal diseases in plants?
Pisolithus tinctorius
Pseudomonas cepacia
Gliocladium virens
Paecilomyces lilacinus
The Ti plasmid is often used for making transgenic plants. This plasmid is found in
Azotobacter
Rhizobium of the roots of leguminous plants
Agrobacterium
Yeast as a 2µm plasmid
The technique of obtaining large number of plantlets by tissue culture method is called
plantlet culture
organ culture
micro-propagation
macro-propagation
