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TLS Online TPP Program

#Id: 2229

The Birth of a Gene - Duplication is the most common way that new genes arise in eukaryotes. 

#Unit 11. Evolution and Behavior #Origin of new genes and proteins #Part B Pointers
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TLS Online TPP Program

#Id: 451

#Unit 2. Cellular Organization

Nucleosomes that contain linker H1 histones are referred to as chromatosomes.
TLS Online TPP Program

#Id: 452

#Unit 2. Cellular Organization

Lysine  in the histone tails are the most common targets of modification.
TLS Online TPP Program

#Id: 453

#Unit 2. Cellular Organization

Acetylation, methylation, ubiquitylation, and sumoylation all occur on the free epsilon amino group of lysine.
TLS Online TPP Program

#Id: 454

#Unit 2. Cellular Organization

Acetylation neutralizes the positive charge of lysine so disrupts DNA Histone interactions.
TLS Online TPP Program

#Id: 455

#Unit 2. Cellular Organization

lysine methylation retains the positive charge, and lysine can be mono-, di-, or trimethylated.
TLS Online TPP Program

#Id: 456

#Unit 2. Cellular Organization

Histone codes are specific and conserved residues that undergoes to modification and changes expression of chromatin.