Eukaryotic cells also repair mismatches and do so using homologs to MutS (called MSH proteins for “MutS homologs”) and MutL (called MLH and PMS

TLS Online TPP Program

#Id: 10394

#Unit 4. Cell Communication and Cell Signaling

Malignant tumors are classified by their embryonic

tissue of origin:

Carcinomas -derive from epithelia such as endoderm

(gut epithelium) or ectoderm (skin and neural epithelia) 

Sarcomas - derive from mesoderm (muscle, blood, and

connective tissue precursors)

TLS Online TPP Program

#Id: 4310

#Unit 11. Evolution and Behavior

Cope’s rule: A proposed generalization that individual body size in animals tends to increase during evolution.

TLS Online TPP Program

#Id: 7679

#Unit 1. Molecules and their Interaction Relevant to Biology

Because they cannot rotate, each peptide bond holds 6 atoms in a plane.

However, most possible angles of Phi (φ) and Psi (ψ) are impossible due to clashes

between atoms. These balls are much smaller than the atoms they represent.

TLS Online TPP Program

#Id: 9993

#Unit 4. Cell Communication and Cell Signaling

Planar Cell Polarity 

direct cells to divide in the same plane (rather than forming upper and lower tissue compartments) and to move within that same plane

TLS Online TPP Program

#Id: 6861

#Unit 3. Fundamental Processes

In Drosophila, an example of position effect variegation in the fly eye.