Tight junctions seal off body cavities and restrict diffusion of membrane components

TLS Online TPP Program

#Id: 6554

#Unit 7. System Physiology – Animal

Type 1 diabetes (insulin-dependent diabetes mellitus) ] is due to insulin deficiency caused by autoimmune destruction of the B cells in the pancreatic islets

TLS Online TPP Program

#Id: 3965

#Unit 2. Cellular Organization

Inserting DNA into a phage head involves two types of reaction:

translocation and condensation. Both are energetically unfavorable.

The genome is packaged into the empty capsid by the terminase enzyme.

TLS Online TPP Program

#Id: 8967

#Unit 11. Evolution and Behavior

Nonsynonymous mutations, on the other hand, alter the amino acid sequence of the protein and in many cases are detrimental to the fitness of the organism, so most of these mutations are eliminated by natural selection.

TLS Online TPP Program

#Id: 6352

#Unit 8. Inheritance Biology

Genetic Maternal Effect 

Determination of the phenotype of an offspring not by its own genotype, but by the nuclear genotype of its mother. 

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#Id: 4963

#Unit 6. System Physiology – Plant

Light-sensitive seed germination;

This provides energy for the germinating seed and also decreases the solute potential for water uptake necessary for providing the force for the radicle to push its way through the seed.