Answer: 1200
Explanation:
If it was 1250 J of work done, and a object that weights 50 N, you subtract 50 from 1250 which is 1200 J. Work has been done, so you subtract the high number from the lowest.
 
        
             
        
        
        
Before answering the question, you should know that exons/intron systemin the gene exists only in eukaryotes. A gene can have many exons with introns between them, but in RNA maturation, these exons will be joined together to form one RNA to code for one protein (There's no relation between exons number and how many proteins are formed).
In prokaryotes it is different there's no exons/introns, but their gene can be transcripted to a polycistronic RNA which can give after translation more than one proteins.
        
             
        
        
        
Answer: Mutation can affect an organism by resulting to a change in the number and structure of chromosomes (chromosomal mutation). A typical example of this type of mutation is Down's syndrome where the individual contains 47 instead of 46 chromosomes.
 Mutation can also result to a change in the nucleotide sequence of the DNA molecule in a particular region of a chromosome(Gene mutation) an example of genetic mutation is sickle cell anemia
Explanation:
 
        
             
        
        
        
Answer:B. Will genetically modified crops increase profit for farmers
Explanation:
 
        
                    
             
        
        
        
Answer:
Energy comes in six basic forms: chemical, electrical, radiant, mechanical, thermal and nuclear.
Explanation:
Energy comes in six basic forms: chemical, electrical, radiant, mechanical, thermal and nuclear.