The correct answer here would be C. DNA replication is usually semiconservative: Each of the original strand serves as a template for a complementary daughter strand. The processes that occur in DNA replication couldn’t even get started if the strands are never separated.
The other answer choices are true in themselves, and none of them would independently be a cause for error in DNA replication.
The weather and time do affect crime. The time of day, like late at night, is when most crimes occur. Since it's dark out, the criminal won't be seen as easily compared to during the day. Crime also spikes during warm weather since it seems to be easier for the criminal.
