It’s only day 2 but the questions keep coming! Over 35 live chats and hundreds more great questions.

Today’s highlights in the Cells Zone:

• Bringing back woolly mammoths:

Do you think that we will actually be able to use woolly mammoth DNA to bring them back from extinction?

• Why stem cells are pretty cool:

Can cells be controlled to help people?

• And cell division:

How many times would a cell usually divide until it stops, or does it stop?