From the speed of replication, it is evident that a mammalian genome could be replicated in 1 hour if all replicons functioned simultaneously. S phase actually lasts for 6 hours in a typical somatic cell, though, which implies that no more than 15% of the replicons are likely to be active at any given moment.

TLS Online TPP Program

#Id: 10317

#Unit 4. Cell Communication and Cell Signaling

Cytotoxic T Cells target tumor cells

Most tumor cells, express MHC class I molecules on their surface, cytotoxic T cells can directly recognize them. 

cytotoxic T cells can result in killing of the tumor cells by two different mechanisms

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#Id: 8243

#Unit 10. Ecological Principles

Random dispersions are not common in nature, largely because abiotic conditions, resources, and interactions with other species are not randomly distributed

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#Id: 9884

#Unit 4. Cell Communication and Cell Signaling

TLS Online TPP Program

#Id: 3120

#Unit 3. Fundamental Processes

oriC contains binding sites for DnaA: dnaA-boxes.

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#Id: 5794

#Unit 7. System Physiology – Animal

Tyrosine is first iodized to monoiodotyrosine and then to diiodotyrosine. Then, more and more of the iodotyrosine residues become coupled with one another