The rate of sedimentation is dependent not only upon the applied centrifugal field, but
also on the nature of the particle, i.e., its density and radius, and also the viscosity of the
surrounding medium. Stokes’ Law describes these relationships for the sedimentation of a
rigid spherical particle:

TLS Online TPP Program

#Id: 1039

#Unit 5. Developmental Biology

Craniorachischisis-combination of anencephaly with a contiguous bony defect of the spine (also without meninges covering the neural tissue –rachischisis)

TLS Online TPP Program

#Id: 397

#Unit 2. Cellular Organization

Nucleosomal DNA wraps around the histone protein 1.65 times, so create a writhe of –1.65 and so DLk should be -1.65. But when the change in linking number associated with each nucleosome was measured, the number was lower than this, approximately –1.2 for each nucleosome added. This discrepancy is referred to as the “Nucleosome Linking Number paradox,”

TLS Online TPP Program

#Id: 9655

#Unit 4. Cell Communication and Cell Signaling

Feedback regulation by MAP Kinase

Phosphorylation of threonine residue in HER1 decreases the ability of the receptor kinase to become fully active.

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#Id: 5661

#Unit 7. System Physiology – Animal

The scala media, is continuous with the membranous labyrinth and does not communicate with the other two scalae

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#Id: 8957

#Unit 11. Evolution and Behavior

Gene duplication happens on a massive scale when whole genome duplication occur. whole genome duplication are two type, 

1.Autopolyploid

2.Allopolyploid