Answer:
crossing over
Explanation:
This occurs between prophase 1 and metaphase 1.
Our bodies change food into energy.
Answer: Topoisomerases (or DNA topoisomerases) are enzymes that participate in the overwinding or underwinding of DNA. The winding problem of DNA arises due to the intertwined nature of its double-helical structure. During DNA replication and transcription, DNA becomes overwound ahead of a replication fork.
Explanation:
J.J Thomson showed rays were composed of a previously unknown negative charged particle that was later known as electron