▁ 7 , ▁Issue . ▁ 1 . ▁London : ▁Edward ▁Arnold ▁pp .   6 8 ▁ ▁Mac lean , ▁N . ▁( 1 9 8 7 ). ▁Mac mill an ▁Dictionary ▁of ▁Gen et ics ▁& ▁Cell ▁Bi ology . ▁Mac mill an ▁pp .   4 2 2 ▁ ▁Mac lean , ▁N ., ▁Matt he ws , ▁H . R . ▁& ▁Brad bury , ▁E . M . ▁( 1 9 8 1 ). ▁DNA - ▁Ch rom atin ▁and ▁Ch rom os om es . ▁Oxford : ▁Black well ▁Scient ific ▁pp .   2 8 1 ▁ ▁Mac lean , ▁N . ▁ed , ▁Gregory , ▁S . ▁ed , ▁F lav ell , ▁R . A . ▁ed . ▁( 1 9 8 3 ). ▁E uk ary otic ▁Gen es . ▁Their ▁Str ucture , ▁Activity ▁and ▁Reg ulation . ▁Oxford : ▁But ter worth - He in emann ▁pp .   4 7 4 ▁ ▁Mac lean , ▁N . ▁& ▁Hall , ▁B . K . ▁( 1 9 8 7 ). ▁Cell ▁Comm it ment ▁and ▁D iffer enti ation . ▁Cambridge : ▁Cambridge ▁University ▁Press ▁pp .   2 4 4 ▁ ▁Mac lean ▁N ▁ed . ▁( 1 9 9 4 ). ▁Anim als ▁with ▁Nov el ▁Gen es . ▁Cambridge : ▁Cambridge ▁University ▁Press ▁pp .   2 6 6 ▁▁ ▁Mac lean ' s ▁most ▁recent ▁books ▁are ▁all ▁on ▁the ▁subject ▁of ▁British ▁Wild life .