An optical measurement of a protein is taken through microscopy by given that protein a high energy light and it emits a low energy light after absorption. What phenomenon is taking place?

#Question id: 3898

#Unit 3. Fundamental Processes

Which one of the following classes is expressed in the unfertilized egg and is involved in directing the spatial organization of the Drosophila embryo early in development?

#Question id: 6540

#General Aptitude

Every month, the price of a particular commodity falls in this order: 1024,640,400,250,...... What is the next value?

#Question id: 28244

#Unit 5. Developmental Biology

In male Drosophila, which of the following cell is undergo a committed progenitor cell that divides to become the precursors of the sperm?

#Question id: 7207

#Unit 5. Developmental Biology

Which of the following statements is true about formation of the primitive streak ?

A. by the cellular dance mechanism, the cells came down the sides of the epiblast to undergo a medially directed intercalation of cells in the posterior margin where primitive streak forms.

B. Cellular dance is mediated by wnt planar cell polarity pathway in the hypoblast cells, at the posterior edge of the embryo.

C. The Wnt pathway activated by fibroblast growth factors (FGFs) produced by the hypoblast.

D. The Wnt planar cell polarity pathway activated by b-catenin produced by the epiblast.

#Question id: 28675

#Unit 2. Cellular Organization

What will be the result of combination of two positive feedback loops?