The time that is required for an enzyme to convert one substrate molecule into one product molecule is

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#Question id: 6959

#5. Developmental Biology

Which of the following is NOT involved in left-right asymmetry of vertebrates?

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#Question id: 2631

#2. Cellular Organization

True statements about genes of galactose metabolism in Yeast;

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#Question id: 16118

#7. System Physiology – Animal

Following statements are regarding to the heat production by the activation of sympathetic nervous system.

A. Activation is stimulation of β receptors in brown fat, which increases metabolic rate and heat production.

B. Activation is stimulation of α2 receptors in brown fat, which increases metabolic rate and heat production.

C. Stimulation of α1 receptors in vascular smooth muscle of skin blood vessels, producing vasoconstriction. Vasoconstriction reduces blood flow to the surface of the skin.

D. Stimulation of α1 receptors in vascular smooth muscle of skin blood vessels, producing vasodilation. Vasodilation reduces blood flow to the surface of the skin.

Which of the following combination is correct?

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#Question id: 11077

#7. System Physiology – Animal

A person’s normal tidal volume is 400 ml with a dead space of 100 ml. The respiratory rate is 12 breaths/min. The person is placed on ventilator for surgery and the tidal volume is 700 with a rate of 12. What is the approximate alveolar Pco2 for this person?

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#Question id: 15560

#12. Applied Biology

Nearly all of the genetic improvements to industrially important antibiotic-producing strains have been achieved by the use of