Which of the following signals play important roles in neurulation and cell fate patterning of the neural tube?

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#Question id: 15892

#Unit 12. Applied Biology

Which of the following is not an application of tissue culture?

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#Question id: 28323

#Unit 5. Developmental Biology

 A cleavage furrow cleaved only a portion of the cytoplasm and does not penetrate the yolky portion, this type of cleavage is referred to as___ 

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#Question id: 8858

#Unit 9. Diversity of Life Forms

Which of these factors, when used to label the horizontal axis of the graph in Figure 33.1, would account most directly for the shape of the plot?

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#Question id: 31118

#Unit 2. Cellular Organization

Which of the following protein shows lowest FRAP?

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#Question id: 3370

#Unit 11. Evolution and Behavior

One thousand independent populations of Drosophila are established with 25 individuals in each population, of which, one individual is of Aa genotype and the other nine are of AA genotype. If random genetic drift is the only mechanism acting on these populations, then, after a large number of generations, the expected number of populations fixed for the "a" allele is