Answer:
Answer is Below
Explanation:
According to resourcegate.net, A codon consisting of a single base could only code for 4 amino acids, a length of two bases for 16 (4x4), and of three bases for 64 (4x4x4). Given that tRNAs have to interact via their anticodons with the mRNA, we have an upper limit for the codon length.
Hopes this helps :D
Mark me branliest Please 
 
        
                    
             
        
        
        
Option no. 2 a decrease in the release of oxygen gas
It is not simple because the process of growing crops, it needs more fertilizers, and processing the plants converting it to fuels needs a lot of energy. As much energy is used during the production from natural gas. The way of making biofuels it contains cellulose. Cellulose                          
                                                                                                      
        
             
        
        
        
Answer: <u>Guanine
</u>
According to Chargaff's rule, the base pairing in the DNA and RNA is fixed. Adenine always pairs with Thymine in DNA and Uracil in RNA. Guanine pairs up with cytosine. This complementary base pairing is universal and constant. That's why amounts are also equal. It means if cytosine is 20% in any DNA sample, then amount of guanine would be 20% as well. 
 
        
             
        
        
        
prophase I : homologous chromosomes are paired 
metaphase I : the centrosome replicates 
anaphase I: homologous chromosomes are separated 
telophase I : nuclear envelopes form around separated chromosomes