Types of Aneuploidy

Nullisomy is the loss of both members of a homologous pair of chromosomes. It is represented as 2n-2.

Monosomy is the loss of a single chromosome, represented as 2n-1. 

Trisomy is the gain of a single chromosome, represented as 2n+1. 

Tetrasomy is the gain of two homologous chromosomes, represented as 2n+2. 

TLS Online TPP Program

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#Unit 4. Cell Communication and Cell Signaling

Constitutively active Ras proteins (RasD) 

Replacement of the normal glycine 12 with any other amino acid (except proline) blocks the functional binding of GAP proteins and in essence “locks” Ras in the active GTP-bound state.

TLS Online TPP Program

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#Unit 4. Cell Communication and Cell Signaling

B-cell activation

TLS Online TPP Program

#Id: 7487

#Unit 4. Cell Communication and Cell Signaling

Digestion of antibody 

TLS Online TPP Program

#Id: 8463

#Unit 1. Molecules and their Interaction Relevant to Biology

Interactions between amino acid residues at the ends of the helical segment and the electric dipole inherent to the  helix.

TLS Online TPP Program

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#Unit 2. Cellular Organization

Actin can reversibly assemble into filaments that consist of two helices of actin subunits