microRNAs (miRNAs) are small noncoding RNAs that play important roles in posttranscriptional gene regulation. In animal cells, miRNAs regulate their targets by translational inhibition and mRNA destabilization. Here, we review recent work in animal models that provide insight into the diverse roles of miRNAs in vivo.icroRNAs (miRNAs) are small noncoding RNAs that play important roles in posttranscriptional gene regulation. In animal cells, miRNAs regulate their targets by translational inhibition and mRNA destabilization. Here, we review recent work in animal models that provide insight into the diverse roles of miRNAs in vivo.
Polymer Definition. A polymer is a large molecule made up of chains or rings of linked monomer units. Polymers usually have high melting and boiling points. Examples: PVC (poly vinyl chloride), polystyrene, cellulose.olymer Definition. A polymer is a large molecule made up of chains or rings of linked monomer units. Polymers usually have high melting and boiling points. Examples: PVC (poly vinyl chloride), polystyrene, cellulose.
Making the world better, one answer at a time. A polymer (a chemical term) is any material that is made up of repeating linked units (monomers). An example of a polymer is starch. It is made from linked units of Glucose (a sugar).Another example is plastics such as low density polyethylene made from linking repeating ethylene (a gas) units. Maybe a more familar example that is used around the house is when you repair your car with fiberglass.aking the world better, one answer at a time. A polymer (a chemical term) is any material that is made up of repeating linked units (monomers). An example of a polymer is starch. It is made from linked units of Glucose (a sugar).