Which one of the following type of plastids does not contain stored food material?
Options
(a) Amyloplasts (b) Chromoplasts (c) Elaioplasts (d) Aleuroplasts
Correct Answer:
Chromoplasts
Explanation:
Chromoplasts are non-photosynthetic coloured plastides which […]
Which one of the following is not considered as a part of the endomembrane system?
Options
(a) Golgi complex (b) Peroxisome (c) Vacuole (d) Lysosome
Correct Answer:
Peroxisome
Explanation:
Except peroxisome the remaining three […]
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 energy-releasing process in which the substrate is oxidised without an external electron acceptor is called
Options
(a) fermentation (b) photorespiration (c) aerobic respiration (d) glycolysis
Correct Answer:
glycolysis
Explanation:
Glycolysis takes place […]
Which one of the following is the correct matching of three items and their grouping category?
Options
(a) ilium, ischium, pubis – coxal bones of pelvic gridle (b) actin, myosin, rhodopsin. – muscle proteins […]
For a critical study of secondary growth in plants. Which one of the following pairs is suitable?
Options
(a) teak and pine (b) deodar and fern (c) wheat and maiden hair fern (d) […]
Electrons from excited chlorophyll molecule of photosystem II are accepted first by:
Options
(a) Cytochrome-b (b) Cytochrome-f (c) Quinone (d) Ferredoxin
Correct Answer:
Quinone
Explanation:
Electrons from excited chlorphyll molecule of photosystem II are […]
Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by
Options
(a) absence of secondary phloem (b) presence of cortex (c) position of protoxylem (d) absence of secondary xylem
Correct Answer: […]
Which one of the following is used as vector for cloning genes into higher organisms?
Options
(a) Baculovirus (b) Salmonella typhimurium (c) Rhizopus nigricans (d) Retrovirus
Correct Answer:
Retrovirus
Explanation:
Retroviurs as has […]
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