Photodecomposition of riboflavin generates a free radical that initiates polymerization.

TLS Online TPP Program

#Id: 940

#Unit 5. Developmental Biology

The mode of fertilization in sea urchin being external, the egg and spermatozoa are released into the sea water.

TLS Online TPP Program

#Id: 4733

#Unit 5. Developmental Biology

A stem cell retains the ability to divide and re-create itself while also having the ability to generate progeny capable of specializing into a more differentiated cell type.

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#Id: 6846

#Unit 5. Developmental Biology

Induction

Kind of interaction in which one group of cells changing the behavior of an adjacent set of cells, thereby causing them to change their shape, mitotic rate, or cell fate. 

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#Id: 6847

#Unit 5. Developmental Biology

There are two components of inductive interaction:

Inducer

Responder

TLS Online TPP Program

#Id: 6848

#Unit 5. Developmental Biology

Inducer 

the tissue that produces a signal (or signals) that changes the cellular behavior of the other tissue.

TLS Online TPP Program

#Id: 6849

#Unit 5. Developmental Biology

Responder, 

the cell or tissue being induced.

Cells of the responding tissue must have both 

A receptor protein for the inducing factor

The ability to respond to the signal