Answer:
The answer should be 
Since the pedigree has two different letters, it will have one letter of each, but the DNA will still be A.
 
        
             
        
        
        
Maybe goggles to protect her eyes, tie her hair back so it doesn't accidentally catch on fire! and a lab coat if provided, to protect her skin. 
        
             
        
        
        
<span>The organism will produce 12 chromosomes (A). 
Sex cells are the products of meiosis. Daughter cells of meiosis contain half the number of chromosomes of the parent cell. So if the parent cell has 24 chromosomes, then the sex cell would have <em>12 chromosomes</em>.</span>
        
                    
             
        
        
        
The correct answer is option C, that is, the presence of the nuclear membrane.  
Cyanobacteria is a phylum of bacteria that attain their energy via the process of photosynthesis, and are the only photosynthetic prokaryotes possessing the tendency to generate oxygen. As a prokaryote, they are devoid of the nuclear membrane.  
Euglena refers to a single cell flagellate eukaryote. It comes under the class Euglenoidea. The species of Euglena are witnessed in salt water and in freshwater. Being a eukaryote, they possess nuclear membrane.