In the case of human chromosomes, approximately 300 G bands can usually be distinguished during metaphase. A larger number of G bands (in the range of 800) can be observed in prometaphase chromosomes because they are more extended than metaphase chromosomes.

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#Id: 7877

#Unit 2. Cellular Organization

The cristae’s membranes are the site of ATP synthesis thus the invaginations increase the mitochondrion’s capacity to generate ATP.

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#Id: 8928

#Unit 2. Cellular Organization

ATM and ATR, activate a triad of related protein kinases: Chk1, Chk2, and MK2

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#Id: 2123

#Unit 8. Inheritance Biology

Pericentric inversion Chromosome inversion that includes the centromere in the inverted region.

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#Id: 10366

#Unit 4. Cell Communication and Cell Signaling

Class I MHC, glycoproteins expressed on the surface of nearly all nucleated cells; the major function of the class I is presentation of endogenous peptide antigens to CD8+ T cells.

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#Id: 9399

#Unit 11. Evolution and Behavior

Imprinting

Imprinting, in psychobiology, a form of learning in which a very young animal fixes its attention on the first object with which it has visual,  auditory, or tactile experience and there after follows that object