Sister chromatids first appear during the S phase of the cell cycle.
Answer:
There aren't specific characteristics that make a person gay or not because everyone is different.
Answer:
Virus are a type of infectious agents it in almost all scenarios it will infect as many as cells it can before your WBC's can kill them
And in fact you are right now only in the state of Disease free. Every second your body is fighting off diseases. So to support your immune system eat Lots of Healthy food and stay safe!
