Welcome to THE CORE. Most of biology is connected via some very fundamental principles of how a typical cell works. These 4 pages condense and clearly explains these principles. Once you've read through THE CORE, you will find it much easier to follow all the pages in WHAT BIOLOGISTS DO and THE CONTEXT, as many biological topics in the media stem from these basic principles. You can also use this page as a launch pad to dip into other topics you might want to read about, look for speech bubbles and hyperlinks to other pages and educational media - and get in contact if you can't find one for a topic you'd like to read about!
Cell division only happens at very specific times - when you lose control over when it happens you can get cancer
DNA replication is a cool process that is only possible because of the unique double-helix structure of it.
MAKING NEW CELLS
All living things need to make new cells to survive, grow and reproduce. Here are just a few examples:
But where do new cells come from?
Answer: All cells come from already existing cells. Cells divide into two when they need to multiply. Here is a video of a real kidney cell dividing:
During the process of division from one cell to two new cells, there are two key processes that have to occur:
First, the cell needs to make lots of new protein. This requires lots of transcription and translation.
Next, the cell needs to copy its DNA so the new cell can have an identical copy.
This is called DNA replication.