Single circular piece of DNA
        
                    
             
        
        
        
"Photosynthesis", this means plants breath in carbon dioxide and breath out Oxygen
        
             
        
        
        
Because it is easily accessible and has a mild immune response, the retina makes a good target for gene therapy. 
- In a mouse model, the inner retina was highly effectively transduced by an intravitreally injected adeno-associated virus (AAV) vector.
- The vitreous and internal limiting membrane (ILM) operated as obstacles to transduction in large animals, reducing the efficacy of retinal transduction. 
- Before administering AAV vectors, we performed vitrectomy (VIT) and ILM peeling on cynomolgus monkeys to get around these obstacles. 
- The findings suggest that surgical ILM peeling prior to AAV vector delivery would be beneficial for retinal disease treatment and safe for effective transduction of the nonhuman primate retina.
Learn more about the adeno-associated virus (AAV) with the help of the given link:
brainly.com/question/28205495
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<h3><u>Answer;</u></h3>
Morphology 
The taxon species may be defined by <em><u>reproductive isolation and morphology </u></em>
<h3><u>Explanation;</u></h3>
- <em><u>A taxon is a group of one or more populations of an organism. </u></em>
- <em><u>Morphology is the form or the appearance of a particular organism, </u></em>while <u><em>reproductive isolation is the separation of organisms by some type of barrier.</em></u> 
- <em><u>Reproductive isolation is a type of mechanisms that prevent two or more organisms or populations from exchanging genes through reproduction. </u></em>This occurs when two organisms or species are separated for too long such that they can no longer reproduce with each other due to different adaptation and changes in the environment.
- <u><em>Morphology and reproduction isolation may be defining characteristics of taxon of species.</em></u>
 
        
        
        
Answer:
C
Explanation:
Endocytosis refers to the process of a cell 'consuming' a large particle and keeping them in its cytoplasmic membrane.