All Answers (8) 1  This is nice information from wikipedia visit. 2  I guess if you assume the DNA is at rest with an average rise of 3.4 A per base pair, then the length of chr1 would be 3.4A * 249*10^6, i.e. 847*10^6A, i.e. ~85 mm, or 8.5 cm.
Boiler sizing includes two things: 1  The heating and hot water capabilities of the boiler. 2  The physical size of your boiler and whether it will fit in the space you have it destined for.
There are plenty of other short-cuts, but these are the primary and most common ones. OK, I still haven't said how much a new boiler should cost ;-) Well.... a cheap and cheerful boiler from B&Q or similar is about 400.A day's work to fit it, taking all available short cuts will be about the same, so 800, roughly.here are plenty of other short-cuts, but these are the primary and most common ones. OK, I still haven't said how much a new boiler should cost ;-) Well.... a cheap and cheerful boiler from B&Q or similar is about 400.