In the Fast block to polyspermy, after the binding of the first sperm, the membrane potential shifts from

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#Question id: 12387

#Unit 7. System Physiology – Animal

An elderly patient complains of muscle weakness and lethargy. A urine specimen reveals a Na+ concentration of 600 mmol/L and an osmolarity of 1200 mOsm/L. Additional laboratory tests provide the following information: plasma Na+ concentration = 167 mmol/L, plasma renin activity = 4 ng angiotensin I/ml/hr (normal = 1), plasma antidiuretic hormone (ADH) = 60 pg/ml (normal = 3 pg/ml), and plasma aldosterone = 15 ng/dL (normal = 6 ng/dL). Which of the following is the most likely reason for this patient’s hypernatremia?

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#Question id: 15411

#Unit 8. Inheritance Biology

Both X-linked genes and extranuclear inheritance produce different results in reciprocal crosses. How can you distinguish between them?

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#Question id: 10800

#Unit 6. System Physiology – Plant

Which of the following secondary metabolites causes infertility in the

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#Question id: 7509

#General Aptitude

A boatman goes 3 km against the current of the stream in 1 h and goes 1 km along the current in 15 min. How long will it take to go 7 km in stationary water?

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#Question id: 10687

#Unit 10. Ecological Principles

V(t) and E(t) are, respectively, prey density and predator density at time t. The densities have dynamics

What will the positive equilibrium densities of both predator and pray at isocline