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Are inflammatory mediators released by Pattern recognition receptor containing cells, injured/infected cell/leukocyte or all there?
Are the inflammatory mediators released by Pattern recognition receptor containing cells?
Which of the following is false regarding amino acids?

a)they are inorganic molecules
b)they typically have enantiomeric forms
c)they are the monomeric subunits of polypeptides
d)they are amines
this group of biologically important molecules can be recognized by the general formula CnH2nOn
-lipids
-monosaccharides
-thiols
-disaccharides
Which of the following true of molecular diagnosis
What are polyclonal antibodies?
In immunology what exactly are isotype, allotype and idiotype? What is their application?
How is early recombination nodule different from late recombination nodule (structurally and functionally)?
Is tertiary protein structure the net structure formed after the alpha helix and beta pleated sheet bearing polypeptide segments interact among themselves (through H-bond, hydrophobic interaction, van der Waals force, ionic bonds and covalent linkage)?
What are tertiary structure, motif and domain?
I really don't understand these three terms. If you could explain with illustration it would be of great help.

Some of my doubts:

'The overall 3D structure of the polypeptide chain is referred to as the protein's tertiary structure.'

-All molecules have a 3D structure, even a linear polypeptide chain has a three dimensional structure so do alpha helix and beta pleated sheet,but here I don't understand what is meant by 'overall 3D structure', is it the 3D structure of an Alpha helix (when aprotein is formed of a single alpha helix)?

A linear polypeptide (primary structure) through specific intra-chain H-bonding form alpha helix and beta pleated sheet(secondary structure), but how does the secondary structure contribute to tertiary structure?

How is a motif different from tertiary structure?

What is a domain actually?
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