For the regeneration of a whole plant from a cell or callus tissue, there should be differentiation leading to shoot bud or embryo formation. This may occur through 

TLS Online TPP Program

#Question id: 11957

#Unit 7. System Physiology – Animal

Because the foods eaten by animals are often composed largely of macromolecules, animals need to have mechanisms for ________.

TLS Online TPP Program

#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?

TLS Online TPP Program

#Question id: 3860

#Unit 3. Fundamental Processes

Guide RNAs:

TLS Online TPP Program

#Question id: 408

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following compounds has the largest negative value for the standard free-energy change (DG'°) upon hydrolysis?

TLS Online TPP Program

#Question id: 9155

#Unit 9. Diversity of Life Forms

The success of plants extending their range northward following glacial retreat is primarily determined by ________.