This is how Nintendo engineered a legal argument disallowing 3rd party cartridges original GameBoy. The cartridge needed to display the Nintendo logo on startup which was checked pixel for pixel, otherwise the GameBoy wouldn't proceed with booting. Third party carts couldn't do so without infringing trademark.
Radiation units are fiendishly tricky to convert between. Here, the only indication is that after decontamination their hair was still reading 300 counts per minute. CPM are instrument-specific and doesn't mean that's the correct number of disintegrations per second, nor easily converted to absorbed dose units, and this is after decontamination, and disregarding the amount of water they ingested.
All that disclaimer aside: a banana produces about 15 Bq (which is s^-1), i.e. 900 cpm.
Women (here I mean XX individuals) have two different alleles present for each of the green (OPN1MW, also the OPN1MW2 duplication) and red cones (OPN1LW), since these are found on the x chromosome. X-inactivation means that only one gets expressed in a particular cell, but this means individual photoreceptor cells can express either allele. The individual proteins and gene encodings of the cones can differ, and small variations shift the spectral sensitivity to slightly shorter or slightly longer wavelengths. It's possible, then, for a woman to express as many as five unique-ish cones in theory -- though there's only been one 'true' tetrachromat found so far. Still, having red and green cone variants that respond with a peak preference shifted 10-20 nm in addition to another unshifted cone (or, better, shifted the opposite direction) provides a biological basis to expect women (again, specifically XX individuals) to have finer color differentiation. This explanation, however, could not occur following a hormone replacement.
Presumably because the price was about 5x higher to begin with than any the competitors at the same tier of performance? Perhaps it's better to get paid anything at all than to just lose 100% of the customers.
Sadly very light on the subject matter of the title, mostly just a very brief LaTeX introduction page. The interesting content is the outlinks in the intro, existing templates that mimic D&D, either old school 2e style[1] or modern 5e aesthetics[2].