DNA fragments generated by the restriction endonucleases in a chemical reaction can be separated by :
Options
(a) Polymerase chain reaction (b) Electrophoresis (c) Restriction mapping (d) Centrifugation
Correct Answer:
Electrophoresis
Explanation:
DNA […]
The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge, is called
Options
(a) Convergent evolution (b) Non-random evolution (c) Adaptive radiation (d) […]
Which of the following cannot be detected in a developing foetus by amniocentesis?
Options
(a) Sex of the foetus (b) Down syndrome (c) Jaundice (d) Klinefelter syndrome
Correct Answer:
Jaundice
Explanation:
Jaundice cannot […]
Transition state structure of the substrate formed during an enzymatic reaction is:
Options
(a) Permanent but unstable (b) transient and unstable (c) permanent and stable (d) transient and stable
Correct Answer:
transient and unstable
The first stable product of fixation of atmospheric nitrogen in leguminous plants is:
Options
(a) Ammonia (b) NO₃⁻ (c) Glutamate (d) NO₂⁻
Correct Answer:
Ammonia
Explanation:
Ammonia is first stable compound produced in fixation […]
Which one of the following is true for fungi?
Options
(a) They are phagotrophs (b) They lack a rigid cell wall (c) They are heterotrophs (d) They lack nuclear membrane
Correct Answer:
They […]
The common characteristics between tomato and potato will be maximum at the level of their
Options
(a) Genus (b) Family (c) Order (d) Division
Correct Answer:
Family
Explanation:
No explanation available. Be the […]
Which of the following are likely to be present in deep sea water
Options
(a) Eucobacteria (b) Blue green algae (c) Saprophytic (d) Archeabacteria
Correct Answer:
Archeabacteria
Explanation:
No explanation available. Be the […]
A good producer of citric acid is
Options
(a) Pseudomonas (b) Clostridium (c) Saccharomyces (d) Aspergillus
Correct Answer:
Aspergillus
Explanation:
Aspergillus niger is a fungus and one of the most common species of […]
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