<span>The answer is c, incomplete dominance. The dominate trait of the red petals is their red color. The dominate trait for the white petals is their white color. When their offspring have pink petals, neither parental phenotype trait is dominate over the other. Their colors are equally represented in the pink color of the offspring, which shows incomplete dominance - a case where neither parental phenotype is more visible than the other. The ratio of their colors represented in the offspring is one to one.</span>
        
             
        
        
        
Nonsense mutations make stop codons. If the mutation is towards the beginning of a gene, then the protein that gets created will be cut short and not function properly. But if it was towards the end, there is still a chance that the protein will still be able to work.
        
             
        
        
        
The sickle form of the hemoglobin gene is created when an adenine nucleotide is changed to a thymine. ... That single amino acid replacement in the -globin protein alters the shape and the chemistry of the hemoglobin molecule, causing it to polymerize and distort the red blood cell into the sickle shape.
 
        
             
        
        
        
Answer:
Answer is explained below.
Explanation:
A. The  observed  single  stranded  regions  are  found  in  the  mRNA.
B. The  loops  represent  introns  (Non-coding  portions  of  the  mRNAin primary  transcript ).  The  intron  sequences  are  removed  to  form  a mature mRNA  by  splicing.
C. If  the  scientist  use  RNA  and  DNA  from  bacteria,  loops  cannot be seen. Because introns are produced in only eukaryotes but not in prokaryotes.
 
        
                    
             
        
        
        
Birds, insects, and many reptiles excrete nitrogenous waste in the form of uric acid, which saves water. 
Nitrogenous waste in the body tend to form toxic ammonia, which must be excreted. Mammals such as human excrete urea, while birds, reptiles, and some terrestrial invertebrates produce uric acid as waste in the form of a white paste or power. The production of uric acid involves a complex metabolic pathway that  is energetically costly in comparison to processing of other nitrogenous wastes such as urea or ammonia, it has the advantages of reducing water loss and, hence, reducing the need for water.