In mitochondrial electron transport system, for every two pairs of electrons that pass from NADH molecules through a sequential series of cytochrome enzymes to molecular oxygen
Options
(a) 3 ATP (b) 4 ATP (c) […]
In meiosis, crossing over is initiated at
Options
(a) Pachytene (b) Leptotene (c) Zygotene (d) Diplotene
Correct Answer:
Pachytene
Explanation:
Leptotene is Condensation of chromatin.Zygotene is Synapsis of homologous chromosomes.Pachytene is Crossing over.Diplotene […]
In man which one of the following cranial nerve is associated with the sense of body balance?
Options
(a) VI (b) VII (c) VIII (d) XI
Correct Answer:
VIII
Explanation:
VIII,the auditory cranial […]
In man the thoracic basket is composed of
Options
(a) Ribs and thoracic vertebrae (b) Ribs and sternum (c) Ribs, sternum and vertebrae (d) Ribs, sternum and thoracic vertebrae
Correct Answer:
Ribs, sternum […]
In man the axial skeleton is made up of
Options
(a) 80 bones (b) 103 bones (c) 100 bones (d) 106 bones
Correct Answer:
80 bones
Explanation:
It forms the main axis. It […]
In man and mammals, air passes from outside into the lungs through
Options
(a) Nasal cavity, larynx, pharynx, trachea, bronchi, alveoil (b) Nasal cavity, larynx, pharynx, trachea, bronchioles, alveoli (c) Nasal cavity, pharynx, […]
In mammals Haversian canals are connected with each other by transverse canals, which are called
Options
(a) Semicircular canals (b) Volkman’s canals (c) Inguinal canals (d) Bidder’s canals
Correct Answer:
Volkman’s canals
Explanation: […]
In mammalian ear, a membranous structure which separate the scala vestibuli and scala media is
Options
(a) Basilar membrane (b) Reissner’s membrane (c) Autolith membrane (d) Tectorial membrane
Correct Answer:
Reissner’s membrane
Explanation:
The […]
In male cockroaches, sperms are stored in which part of the reproductive system?
Options
(a) Seminal Vesicles (b) Mushroom glands (c) Testes (d) Vas deferens
Correct Answer:
Seminal Vesicles
Explanation:
In male cockroach, […]
In majority of angiosperms
Options
(a) Reduction division occurs in the megaspore mother cell (b) A small central cell is present in the embryo sac (c) Egg has a filiform apparatus (d) There […]
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