Natural selection
Bc it is
Answer:
The correct answer will be thiamine pyrophosphate (TPP) → dihydrolipoamide → Flavin adenine dinucleotide (FAD).
Explanation:
The pyruvate dehydrogenase complex is a multi-functional enzyme which decarboxylates the pyruvate to form Acetyl CoA. The complex consists of three catalytic enzymes which attach the non-protein part to its structure.
The prosthetic groups are the non-protein groups which bound strongly to the enzyme. In this complex the prothetic groups are :
1. Thiamine pyrophosphate (TPP)- attached to Pyruvate dehydrogenase (E1).
2. Lipoamide: attached to dihydrolipoyl transacetylase (E2).
3. Flavin adenine dinucleotide (FAD): attached to dihydrolipoyl dehydrogenase (E3).
These enzymes work in sequence: E1 →E2→ E3 therefore, the correct order of prosthetic group will be thiamine pyrophosphate (TPP) → dihydrolipoamide → Flavin adenine dinucleotide (FAD). Thus, this is the correct order.
<span>Answer:
Think of DNA-there are only 4 bases, but different combinations give infinite possibilities.
And the same for amino acids and proteins.
Immunoglobulins work on a similar principle. Different VDJ segments are combined for the heavy chain of an antibody. Different VJ segments are combined for the light chain.
Other ways:
Random nucleotides may be added or removed between the gene segments.
There are also different combinations of light and heavy chains.
Antibodies can be any of the 5 isotypes: IgA, IgM, IgG, IgE, IgD.
I'm not going to go into detail as this answer would take too long to write. Do some literature searching on B cells, V(D)J recombination, RAG genes, class switching.</span>
Answer:
im pretty sure its A. have a nice day!
