Use the diagram to help you answer the following question. If there is a decrease in food availability for the wading birds, how will the different levels of organization shown in the diagram be affected?

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

substitution is the answer in this case

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.