The pineapple which under natural conditions is difficult to blossom has been made to produce fruits throughout the year by application of
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(a) IAA, IBA (b) NAA, 2, 4-D (c) Phenyl acetic acid […]
Which two distinct mictobial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N) to the atmosphere?
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(a) Anaerobic ammonium oxidation, and denitrification (b) Aerobic nitrate oxidation, and nitrite […]
Select the correct statement with respect to disorders of muscles in humans
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(a) Rapid contractions of skeletal muscles causes muscle dystrophy (b) Failure of neuromuscular transmission in myasthenia gravis can prevent normal swallowing […]
The foetal ejection reflex in humans triggers release of
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(a) Oxytocin from maternal pituitary (b) Oxytocin from foetal pituitary (c) Human Choronic Gonadotropin (hCG) from placenta (d) Human Placental Lctogen (hPL) from […]
Which of the following best illustrates FEEDBACK in development?
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(a) As tissue (X) devleops, it secrets something that slows down the growth of tissue (Y) (b) Tissue (X) secrets RNA which changes […]
Select the option which correctly matches the endocrine gland with its hormone and its function
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(a) Ovary FSH stimulates follicular development and the secretion of estrogens. (b) Placenta estrogen initiates secretion of […]
In our society women are blamed for producing female children. Choose the correct answer for the sex-determination in humans
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(a) Due to the some defect in the women (b) Due to some defect […]
Which one of the incorrect statement with regards to the importance of pedigree analysis?
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(a) It helps to trace the inheritance of a speicific trait (b) It confirms that DNA is the […]
Identify the site where Wuchereria bancrofti is normally found on human body
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(a) Lymphatic vessels of the lower limbs (b) Muscles of the legs (c) Blood vessels of the thigh region (d) […]
Random unidirectional change in allele frequencies that occurs by chance in all populations and especially in small populations is known as
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(a) Mutation (b) Migration (c) Natural selection (d) Genetic drift
Correct […]
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