Hi Julius, Nice drawing of the DNA double helix. You are right, the DNA is coiled up very tightly so that in the nucleus of each cell of your body (except red blood cells, because they don't have a nucleus), there is 2 meters of DNA wound up. Remember those cheek cells in the microscope? With 2 meters of DNA in each cell, given how many cells there are in your body (over 30 trillion) that is enough DNA to stretch to the sun and back many times.
Hi Julius,
ReplyDeleteNice drawing of the DNA double helix. You are right, the DNA is coiled up very tightly so that in the nucleus of each cell of your body (except red blood cells, because they don't have a nucleus), there is 2 meters of DNA wound up. Remember those cheek cells in the microscope? With 2 meters of DNA in each cell, given how many cells there are in your body (over 30 trillion) that is enough DNA to stretch to the sun and back many times.