A nitrogen-fixing microbe associated with Azolla in rice fields is :
Options
(a) Spirulina (b) Anabaena (c) Frankia (d) Tolypothrix
Correct Answer:
Anabaena
Explanation:
No explanation available. Be the first to write the explanation […]
A drop of each of the following, is placed separately on four slides. Which of them will not coagulate?
Options
(a) Blood serum (b) Sample from the thoracic duct of lymphatic system (c) Whole […]
Which one of the following pairs of food components in humans reaches the stomach totally undigested?
Options
(a) Starch and fat (b) Fat and cellulose (c) Starch and cellulose (d) Protein and starch
Correct […]
Which one of the following pairs of animals comprises ‘jawless fishes’?
Options
(a) Mackerals and Rohu (b) Lampreys and hag fishes (c) Guppies and hag fishes (d) Lampreys and eels
Correct Answer:
Lampreys […]
Which one of the following pairs is wrongly matched ?
Options
(a) Yeast – ethanol (b) Streptomycetes – antibiotic (c) Coliforms – vinegar (d) Methanogens – gobar gas
Correct Answer:
Coliforms – vinegar
Which one of the following is being utilized as a source of biodiesel in the Indian country side?
Options
(a) Betroot (b) Sugarcane (c) Pongamia (d) Euphorbia
Correct Answer:
Pongamia
Explanation:
No explanation available. […]
Which enzymes will be produced in a cell in which there is a nonsense mutation in the lac Y gene?
Options
(a) Lactose permease (b) Transactylase (c) Lactose permease and transcetylase (d) β […]
The two sub-units of ribosome remain united a critical ion level of
Options
(a) copper (b) manganese (c) magnesium (d) calcium
Correct Answer:
magnesium
Explanation:
The two subunits of ribosome remain united at a […]
The Leydig cells found in the human body are the secretory source of
Options
(a) Progesterone (b) intestinal mucus (c) glucagon (d) andeogens
Correct Answer:
andeogens
Explanation:
Leydig cells found in testis is […]
The 24 hour (diurnal) rhythm of our body such as the sleep-wake cycle is regulated by the hormone:
Options
(a) calcitonin (b) prolactin (c) adrenaline (d) melatonin
Correct Answer:
melatonin
Explanation:
Melatonin is […]
2017 Copyright Doctor Dreams Training Academy