The size of a PCR product is mainly determined by the binding location of the PCR primers.

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#Id: 490

#Unit 2. Cellular Organization

S/MARs is a DNA sequence which binds to base structure called scaffold.

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#Id: 1552

#Unit 2. Cellular Organization

Kinesin-5 forms tetramers, assembled in a bipolar configuration to interact with two antiparallel microtubules and move toward the (+) ends.

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#Id: 4874

#Unit 13. Methods in Biology

If p > 0.1, then there will be no assumption for the null hypothesis.

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#Id: 1538

#Unit 2. Cellular Organization

Keratins 

make up IF protein classes I and II 

found in epithelia

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#Id: 1588

#Unit 5. Developmental Biology

Primitive Streak

First arises from a local thickening of the epiblast at the posterior edge of the area pellucida (Koller’s sickle)

By stage 2, the primitive streak cells form a third layer that lies between the hypoblast and epiblast cells.

 By stage 3, the primitive streak has become a definitive region of the epiblast, with cells migrating through it to become the mesoderm and endoderm.