once the lens has formed, it induces other tissues. One of these responding tissues is the optic vesicle itself; thus, the inducer becomes the induced. Under the influence of factors secreted by the lens, the optic vesicle becomes the optic cup, and the wall of the optic cup differentiates into two layers: the pigmented retina and the neural retina. such interactions are called as-

#Question id: 366

#Unit 1. Molecules and their Interaction Relevant to Biology

What is the pH of a solution with a hydroxyl ion (OH-) concentration of 10-10 M?

#Question id: 7257

#Unit 5. Developmental Biology

Following statements are regarding to the specification of anterior-posterior axis in drosophila.

A. The oocyte moves into the posterior region of the egg chamber, while nurse cells fill the anterior portion. The oocyte nucleus moves toward the terminal follicle cells and synthesizes Gurken protein.

B. When Gurken binds to Torpedo, the terminal follicle cells differentiate into posterior follicle cells and synthesize a molecule that activates protein kinase A in the egg.

C. Bicoid mRNA binds to dynein, a “plus-directed” motor protein associated with the nongrowing end of microtubules; dynein moves the bicoid mRNA to the anterior end of the egg.

D. Oskar mRNA becomes complexed to kinesin I, a “minus-directed” motor protein that moves it toward the growing end of the microtubules at the posterior region, where Oskar protein can bind nanos mRNA.

Which of the following is incorrect?

#Question id: 16147

#Unit 4. Cell Communication and Cell Signaling

#Question id: 10448

#Unit 6. System Physiology – Plant

Fusion proteins of phytochrome and phototropins known as neochrome, the structure neochrome contains

#Question id: 1135

#Unit 4. Cell Communication and Cell Signaling

Which of the following is a direct substrate of MAP kinase?

a. TCF             b. SRF             c. SRE             d. p90RSK      e. CREB