The strongest evidence for the endosymbiotic origin of eukaryotic organelles is the similarity between extant prokaryotes and which of the following?

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#Question id: 28470

#Unit 5. Developmental Biology

blastomere of a 2-cell embryo can form both trophoblast cells and the embryo precursor cells of the ICM, these very early cells are said to be___.

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#Question id: 26573

#Unit 3. Fundamental Processes

Correct order of Step for X-chromosome inactivation is 

a. Xic generate xist RNA 

b. xist RNA wrapped over X chromosome 

c. MacroH2A recruited and xist RNA removed 

d. wrapped xist invites PRC2/1 complex

e. PRC2/1 complex  leads to H2AK119ub1 H3K27me3 H4K20me1

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#Question id: 5732

#Unit 8. Inheritance Biology

Consider a plant, such as maize, heterozygous for a paracentric inversion. The inversion is very small and a synapsed inversion loop does not occur in any of the cells. Which of the following statement is correct?

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#Question id: 349

#Unit 1. Molecules and their Interaction Relevant to Biology

Increased atmospheric CO2 concentrations might have what effect on seawater?

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#Question id: 18947

#Unit 13. Methods in Biology

Separation of lipopolysaccharides and high molecular weight polysaccharides using thin layer