Which one of the following classes of genes is involved in specifying the localization of organs in the Drosophila embryo?

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#Question id: 10610

#Unit 10. Ecological Principles

Among the following which statement is false about r-selected species?

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#Question id: 10390

#Unit 6. System Physiology – Plant

Phytochromobilin autocatalytically attaches to the PHY apoprotein through

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#Question id: 16103

#Unit 7. System Physiology – Animal

The set point level for body temperature is situated in:

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#Question id: 12648

#Unit 6. System Physiology – Plant

Biosynthesis of defence compound such as JA occur by the which enzymes_____

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#Question id: 16310

#Unit 7. System Physiology – Animal

The temperature of the body is regulated almost entirely by nervous feedback mechanisms, and almost all these mechanisms operate through temperature regulating centers located in the hypothalamus. Following statements are as follows:

A. The anterior hypothalamic-preoptic area contains large numbers of heat-sensitive neurons, as well as about one third as many cold-sensitive neurons. These neurons are believed to function as temperature sensors for controlling body temperature.

B. The heat-sensitive neurons increase their firing rate 2- to 10-fold in response to a 10°C increase in body temperature. 

C. The cold-sensitive neurons, by contrast, increase their firing rate when the body temperature increases.

D. Anterior hypothalamus integrates the central and peripheral temperature sensory signals.

Which of the following combination is correct?