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: 19789

#Unit 13. Methods in Biology

How to determine the size of PCR product?

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#Question id: 31247

#Unit 5. Developmental Biology

Achondroplasia is caused by base-pair substitution mutation that converts:

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#Question id: 790

#Unit 1. Molecules and their Interaction Relevant to Biology

Presence of a series of 3 G-C pairs in the anticodon arm of initiator fmet tRNA is essential for

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#Question id: 12844

#General Aptitude

A piece of wire 132 cm. long is bent successively in the shape of an equilateral triangle, a square and a circle. Then area will be longest in shape of

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#Question id: 18971

#Unit 9. Diversity of Life Forms

The following are all true about the life cycle of mosses except