Which of the following is not a protein or group of proteins required for conjugation to occur?

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#Question id: 31334

#Unit 5. Developmental Biology

The regrowth of hair shafts from follicular stem cells in the hair bulge is an example of regeneration. Which is similar mechanism like:

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#Question id: 31366

#Unit 5. Developmental Biology

Which one of the following mRNAs can rescue the ventral structures of dorsalized Xenopus embryo when injected into it?

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#Question id: 31370

#Unit 5. Developmental Biology

Which would lead to a ventralized embryo in drosophila? 

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#Question id: 31372

#Unit 5. Developmental Biology

Following statements are regarding lens induction in xenopus. choose incorrect statement?

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#Question id: 31378

#Unit 5. Developmental Biology

The following experimental manipulations were carried out with Xenopus embryo.

Manipulation X: Exposure to UV radiation leading to the failure of cortical rotation.

Manipulation Y: Gastrulae treated with lithium chloride.

The following statements were made with respect to the above manipulations. Which one of the following represents correct statement?

TLS Online TPP Program

#Question id: 31379

#Unit 5. Developmental Biology

The cadherin catenin complex is extremely important during compaction from a morula to the blastula. Transition of early embryonic cells into a blastula differed depending on the presence or absence of calcium ions. In addition, an investigator blocked the expression of β-catenin using vivo morpholinos to detect its effect simultaneously on compaction. Which one of the following conditions will lead to the most successful transition of the morula into the blastula?