The cardiac accelerator action of the catecholamines liberated by sympathetic stimulation is referred to as their:

TLS Online TPP Program

#Question id: 15287

#Unit 5. Developmental Biology

Following are postulates of mechanism of differentiation. Which of the following is incorrect?

TLS Online TPP Program

#Question id: 5562

#Unit 5. Developmental Biology

In an egg cell treated with a chemical that binds calcium and magnesium ions, the ________.

TLS Online TPP Program

#Question id: 7166

#Unit 5. Developmental Biology

Just prior to the onset of gastrulation in an embryo, the "organizer" cells are specified. If you were to experimentally block the specification of these cells, what would you expect the result to be in the developing embryo?

TLS Online TPP Program

#Question id: 2569

#Unit 2. Cellular Organization

Some botanists argue that the entire plant should be considered as a single unit rather than a composite of many individual cells. Which of the following cellular structures best supports this view?

TLS Online TPP Program

#Question id: 7062

#Unit 5. Developmental Biology

Limb regeneration in salamanders occur by the process of