Type of iteroparity

Seasonal iteroparity - have distinct breeding seasons 

Continuous iteroparity- reproduce at any time of the year. 

TLS Online TPP Program

#Id: 1519

#Unit 2. Cellular Organization

In cilia and flagella,

microtubules are assembled from an MTOC called a basal body.

TLS Online TPP Program

#Id: 1520

#Unit 2. Cellular Organization

Two different types of microtubule structures can exist, 

one in the T form bound to GTP 

one in the D form bound to GD

TLS Online TPP Program

#Id: 1521

#Unit 2. Cellular Organization

Free-energy change for dissociation of a subunit from the D-form polymer is more favorable (negative) than the free-energy change for dissociation of a subunit from the T-form polymer.

TLS Online TPP Program

#Id: 1522

#Unit 2. Cellular Organization

Hard keratins make up hair and nails. These keratins are rich in cysteine residues that become oxidized to form disulfide bridges, thereby strengthening the proteins.

TLS Online TPP Program

#Id: 1523

#Unit 2. Cellular Organization

Primary building block of intermediate filaments is a dimer held together through the rod domains, which associate as a coiled coil.

TLS Online TPP Program

#Id: 1524

#Unit 2. Cellular Organization

Two dimers 

Tetramers

Protofilaments (Tetramers are assembled end to end)

Protofibril (Four protofilaments)

10-nm filament (Four protofibrils associate side