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1448101. Which of the following isotope is used for the treatment of thyroid?
A
I-313
B
Co-60
C
P-32
D
C-14Correct Answer: A. I-313
1384102. The behavior of energy in an ecosystem can be conveniently termed as energy flow because
A
Energy transformations are the one-way direction
B
Energy is the denominator of all kinds of system
C
Energy transformations are multidirectional in nature
D
None of the aboveCorrect Answer: A. Energy transformations are the one-way direction
1351103. A pure red flower-bearing plant is crossed with a pure white flower and the F 1 plant bears pink flowers. This is an example of
A
Epistasis
B
Co-dominance
C
Pseudo dominance
D
DominanceCorrect Answer: A. Epistasis
1269104. Green vegetables are a good source of
A
MineralsB
CarbohydratesC
Vit-AD
Vit-CCorrect Answer: A. Minerals
1375105. The genetic information is carried by
A
Nucleic acids
B
Carbohydrate
C
Fatty acids
D
ProteinCorrect Answer: A. Nucleic acids
1252106. Which one of the following animal phylum is latest by discovery?
A
LoriciferaB
CtenophoraC
PogonophoraD
KinorhynchaCorrect Answer: A. Loricifera
1423107. Chemically Sporopollenin is a
A
Protein
B
Lactic acid
C
Co-polymer of carotenoids & fatty acid
D
CarbohydrateCorrect Answer: C. Co-polymer of carotenoids & fatty acid
1429108. Particulate theory of inheritance' was proposed by
A
Herman Muller
B
T. H. Morgan
C
Charles Darwin
D
Gregor Johann MendeCorrect Answer: D. Gregor Johann Mende
1270109. Enzymes speed up biochemical reactions by
A
Increasing the temperature of the reactionB
Lowering the activation energy of the reactionC
Increasing the activation energy of the reactionD
Lowering the temperature of the reactionCorrect Answer: B. Lowering the activation energy of the reaction
1421110. The technique of DNA sequencing was discovered by
A
Frederick Sanger
B
E.M. Southern
C
H.G. Khorana
D
Watson and CrickCorrect Answer: A. Frederick Sanger
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