Answer: 1. B-D-A-C. 
Explanation: If a genetic error occurs during chromosome replication, it will lead to a series of events ranging from: 
1) Production of a DNA strand with an altered base sequence.
2) Production of an mRNA strand with an altered base sequence during transcription. This is because mRNA is synthesized by copying the genetic message coded in the DNA.
3). Synthesis of a protein with an altered amino acid sequence during translation, and this eventually leads to
4). The expression of a new inheritable trait in the organism.
 
        
             
        
        
        
Answer:
The answer is a. Annelida
 
        
             
        
        
        
The level of DNA packaging which is brought about by the formation of nucleosomes it looks like beads on a string.
In general terms, nucleosomes are termed as a basic unit of DNA packaging which is in eukaryotes. 
It consists of eight segments of DNA wound. Nucleosomes form a fundamental unit which repeats the eukaryotic genomes to the nucleus by ensuring a well appropriate access to it.
        
                    
             
        
        
        
I’m not sure if this is exactly what ur asking, but vitamin c, zinc, and copper are needed
        
             
        
        
        
It’s the second one. H,D,C,F,B,G,E,A