As B-DNA is gradually heated, the absorbance at 260 nm

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

TLS Online TPP Program

#Question id: 15296

#Unit 5. Developmental Biology

Match the following

Column I	Column II	Column III
A. Cytochalasin D	i. A sponge toxin	a. Enhances nucleation by binding and stabilizing actin dimers and thereby lowering the critical concentration.
B. Latrunculin	ii. A fungal alkaloid	b. Binds and sequesters G-actin, inhibiting it from adding to a filament end.
C. Jasplakinolide	iii. The “angel of death” mushroom	c. Binds at the interface between subunits in F-actin, locking adjacent subunits together and preventing actin filaments from depolymerizing.
D. Phalloidin		d. Depolymerizes actin filaments by binding to the (+) end of F-actin, where it blocksfurther addition of subunits.

Which one of the following is correct combination?

TLS Online TPP Program

#Question id: 15297

#Unit 5. Developmental Biology

 Which of the following statement is correct regarding mammalian cleavage?

TLS Online TPP Program

#Question id: 15298

#Unit 5. Developmental Biology

In mammalian development Prior to blastocyst formation, each embryonic blastomere expresses ________ transcription factors and appears to be capable of becoming either ICM or trophoblast.