Hence the female sex-chromosomes have a pair of normal allels for all the sex-determining factors borne in them, while the y-chromosome of the male lacks most of these allels, including the x-chromosomal sex-factors.

close-grained

Perhaps the greatest risk is the gumagumas — the swindlers, thieves and rapists who stalk the vulnerable as they wander in the bush.

He swiped his card at the door.