Practice Questions

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#Question id: 31378

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?

#Unit 5. Developmental Biology

The phenotype obtained due to manipulation X can be rescued by injection of BMP in 1-cell embryo.
Noggin mRNA will be enriched in embryos of manipulation X as compared to those of manipulation Y.
Injection of cDNA for chordin into dorsal blastomeres leads to the induction of a secondary axis.
If endogenous GSK3 is knocked out by a dominant-negative form of GSK3 in the ventral cells of the early embryo, a second axis forms.

More Questions

#Question id: 28663

#Unit 2. Cellular Organization

Which of the following activity prevents unloading of cohesins by Pds5-Wapl, thereby stabilizing the cohesins on chromosomes.

#Question id: 28664

#Unit 2. Cellular Organization

DNA-bound G1 cohesins Convert into cohesive complexes by cohesin acetyl transferases (CoATs), that are involve to acetylation, which acetylate__

#Question id: 28665

#Unit 2. Cellular Organization

In which of the following phase DNA-bound G1 cohesins Convert into cohesive complexes by cohesin acetyl transferases (CoATs) ?

#Question id: 28666

#Unit 2. Cellular Organization

Which of the following cohesin-associated factor involves to stabilization of cohesins in vertebrates?

#Question id: 28667

#Unit 2. Cellular Organization

Which of the following factors that involve to the activation of mitotic CDKs?

#Question id: 28668

#Unit 2. Cellular Organization

In Yeast cells with a defective wee1+ gene activate mitotic CDKs prematurely and cause__