Answer:
Cellulose and chitin
Explanation:
i think is the answer, not really sure
<span>Any of the above is possible because anything can happen to a gene when it is transcripted. Mutation happens when there is a defect of coding the right genes resulting to a change of DNA sequence. DNA may be reduced or unchangeable by a transcription factor because of mutation in a gene.</span>
Answer:
They are necessary so they can be added to the carboxyl and amino function groups
Explanation:
Hope that helps