The polysaccharide is the compound that is unlike wax, saturated fat, and the phospholipid. An example of a polysaccharide is starch.
        
             
        
        
        
Answer:
The correct answer is - option A. IKK.
Explanation:
In signal transduction or any other molecular biology process, the upstream or downstream is related to the molecular or cellular events that follow a mechanistic and temporal order.
In TNF signaling involved in cell survival pathway the TRADD- associated complex also is known as TNF receptor-associated death domain complex has a second messenger that activates temporally after the cell membrane receptor known as IKK signaling protein that help in numerous downstream pathways.
Thus, the correct answer is - option A. IKK.
 
        
             
        
        
        
20 amino acids are in your body's proteins, nine are essential to your diet because your cells cannot manufacture them. They are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine.
 
        
             
        
        
        
Are there any answer choices ?
        
             
        
        
        
The question is incomplete. The statements are the following:
(1) The new animal must get the DNA from two different parents, not just one cell.
(2) Mutations could occur that change the cloned animal into a completely different species.
(3) Recombination of the cells as they are cloned will make the resulting pet act differently.
(4) The environment could influence how genes
are expressed, changing how the animal looks and acts.
Answer:
4. The environment could influence how genes  are expressed, changing how the animal looks and acts
Explanation:
An organism is product of the interaction between genes (inherited characters) and environment (non-inherited)