A human cell has about 1000–2000 mtDNA molecules

A human egg has about 500,000 mtDNA molecules

A sperm has only about 100 mtDNA molecules

TLS Online TPP Program

#Id: 8979

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 1447

#Unit 4. Cell Communication and Cell Signaling

Tight junctions prevent the diffusion of: 

Macromolecules

Small water-soluble molecules

Ions

Membrane proteins 

Glycolipids

TLS Online TPP Program

#Id: 7861

#Unit 1. Molecules and their Interaction Relevant to Biology

For an equilibrium mixture, the fraction of D-glucose in the a form is

  

TLS Online TPP Program

#Id: 1848

#Unit 3. Fundamental Processes

TLS Online TPP Program

#Id: 7951

#Unit 2. Cellular Organization

First sugar residue is attached to dolichol by a high-energy pyrophosphate linkage & the other sugars are added by glycosidic bonds