Answer:
Option-C
Explanation:
A pulse-chase experiment which is used to study the cellular process taking place in the cells. This uses the labelled molecule which is incorporated into the cellular pathway and then the unlabeled molecules are used over time to determine how much time is required by the unlabeled molecule to replace the labelled molecule.
In the given question, the pancreatic cell which secretes the digestive enzyme known as the acinar cell is labelled with the leucine and then used unlabeled leucine.
When observed after three hours, the black spots will appear on the exterior of the cell as the protein has been synthesised by the ER and now has been secreted from the cell.
Thus, Option-C is the correct answer.
 
        
             
        
        
        
Well, since I am in 8th grade I can help, try gthis...
<span>The process by which a plant absorbs energy from the sun is, as you know, photosynthesis. 
Remember the Law of Conservation of Energy - when energy is transferred,
it is neither created nor destroyed but rather takes a new form. 
In this case, the plant takes energy in from the sun (through sunlight,
which transfers through radiation) and "leaves" the plant after the
process has occurred in a form of potential energy - the oxygen produced
in this process has potential energy.</span>
        
                    
             
        
        
        
Answer:
I believe the  correct answer is<em> </em><u><em>C. mRnA translation. </em></u>
Explanation:
Because the gene expression is controlled on two levels. First, transcription is controlled by limiting the amount of mRNA that is produced from a particular gene. The second level of control is through post-transcriptional events that regulate the translation of mRNA into proteins. 
 
        
             
        
        
        
<span>DNA replication involves unzipping the DNA molecule, followed by base pairing, which adds complementary nucleotides, to form two new identical DNA molecules that move to the new cells during cell division.</span>
        
                    
             
        
        
        
Environmental science is  a branch of biology focused on the study of the relationships of the natural world and the relationships between organisms and their environments. An example of environmental science is the study of the natural world and how it relates to recycling and mulching.