Answer:
DNA Ligase
Explanation:
DNA ligase is an enzyme that connects nucleotides of DNA from the phosphate to the sugar. This seems to match the provided description, therefore I believe it to be the correct answer.
It’s when an uncomplimentary base in double-stranded DNA is caused by spontaneous deamination of cytosine or adenine. Also mismatching during homologous recombination, or any errors in DNA replication.
The change in color of the foliage can lead to a decrease in numbers of the green beetles. With the color of the leaves changed the beetles are unable to blend in and hide from the blackbird, making them vulnerable to their attacks.