Practice Questions

TLS Online TPP Program

#Question id: 2176

The many pumps present in the membrane have interconnected and important functions. Which of the following functions is NOT correct?

#Unit 2. Cellular Organization

A P-class pump is involved in muscle relaxation.
A V-class pump is involved in maintaining the low pH of lysosomes.
A P-class pump is involved in keeping the cytosolic levels of calcium low.
A P-class pump is involved in keeping the cytosolic levels of potassium low.

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TLS Online TPP Program

#Question id: 15286

#Unit 5. Developmental Biology

In the case of the French flag model. we assume a source of morphogen at one end and a sink at the other and that the concentrations of morphogen at both ends are kept constant but are different from each other. If the cells can respond to threshold concentrations of the morphogen, Thresholds can represent the

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: 15288

#Unit 5. Developmental Biology

Which of the following not a property of responder cell?

TLS Online TPP Program

#Question id: 15289

#Unit 5. Developmental Biology

Which of the following is a property of inducer cell?

TLS Online TPP Program

#Question id: 15290

#Unit 5. Developmental Biology

Lens formation requires sequential events whereby the anterior neural plate signals the anterior ectoderm to promote secretion of Pax 6, which renders the anterior ectoderm more receptive to secretions from the optic vesicle. The above can be best explained by which of the following phenomenon?

TLS Online TPP Program

#Question id: 15291

#Unit 5. Developmental Biology

Cell to cell communication is important in development of an organism. The ability of cells to respond to a specific inductive signal is called