Question

DNA polymerase contains a built-in "proofreading" tool, which acts in a manner similar to a word processor spell-checker. What could happen if this tool didn't exist?

Answer 1

If the internal tool didn’t exist, more mistakes would be made during DNA replication. These mistakes can cause incorrect nucleotides to form, and certain genes wouldn’t be able to code for proteins.

Step-by-step explanation:

Answer 2

The DNA would have many more mutations when it was done being replicated. The different DNA would eventually contradict each other and cause problems.