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: 23846

#Unit 2. Cellular Organization

Which regulatory protein is blocking actin and myosin from binding?

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#Question id: 4928

#Unit 8. Inheritance Biology

A certain kind of snail can have a right-handed direction of shell coiling (D) or left handed coiling (d). If direction of coiling is due to a protein deposited by the mother in the egg cytoplasm, then a Dd egg-producing snail and a dd sperm-producing snail will have offspring of which genotype(s) and phenotype(s)?

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#Question id: 19006

#Unit 13. Methods in Biology

Which of the following types of chromatography involves the process, where the mobile phase moves through the stationary phase by the influence of gravity or capillary action?

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#Question id: 1234

#Unit 4. Cell Communication and Cell Signaling

Which of the following mutations would likely have a similar cancer-promoting effect as the RasD mutation?

a. mutation in Grb2 so that it cannot bind Sos

b. mutation in Sos so that it binds Ras independent of Grb2

c. mutation in GAP so that it cannot bind Ras

d. mutation in EGF receptor so that it binds GRB2 independent of EGF

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#Question id: 32245

#Unit 2. Cellular Organization

During the formation of a clathrin-coated bud, which of the following proteins are important in shaping the neck of a budding vesicle?