In the leaves of C₄ plants, malic acid formation during CO₂ fixation occurs in the cells of
Options
(a) Bundle sheath (b) phloem (c) epidermis (d) mesophyll
Correct Answer:
mesophyll
Explanation:
In C₄ plants, […]
A patient brought to a hospital with myocardial infarction is normally immediately given :
Options
(a) Penicillin (b) Streptokinase (c) Cyclosporin-A (d) Statins
Correct Answer:
Streptokinase
Explanation:
Streptokinase is immediately given to dissolve the […]
Which one of the following vectors is used to replace the defective gene in gene therapy?
Options
(a) Ti plasmid (b) Adenovirus (c) Cosmid (d) Ri plasmid
Correct Answer:
Adenovirus
Explanation:
No explanation […]
The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is
Options
(a) iron-sulphur protein (b) ferredoxin (c) quinone (d) cytochrome
Correct Answer:
quinone
Explanation:
The first acceptor of electrons from […]
In humans, blood passes from the post caval to the diastolic right atrium of heart due to
Options
(a) pushing open of the venous valves suction pull (b) stimulation of the sino auricular node […]
Dry indehiscent single-seeded fruit formed from bicarpellary syncarpous inferior ovary is
Options
(a) Caryopsis (b) Cypsela (c) Berry (d) Cremocarp
Correct Answer:
Cypsela
Explanation:
Dry indehiscent single-seeded fruit formed from bicarpellary syncarpous inferior […]
Which one of the following acts as a physiological barrier to the entry of micro-organisms in human body?
Options
(a) Epithelium of urogenital tract (b) Tears (c) Monocytes (d) Skin
Correct Answer:
Skin
Through their effect on plant growth regulators, what do the temperature and light control in the plants?
Options
(a) Apical dominance (b) Flowering (c) Closure of stomata (d) Fruit elongation
Correct Answer:
Flowering
Explanation: […]
The stage transmitted into the uterus after induced fertilization of ova in the laboratory is
Options
(a) Zygote (b) Embryo at 4 blastomere stage (c) embryo at 2 blastomere stage (d) Morula
Correct […]
The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is:
Options
(a) elongating (b) widening (c) differentiating (d) maturing
Correct Answer:
maturing
Explanation:
The annular […]
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