Inviting danger?
The bloodline
Gay Gene? Not really
Genetic defence
Cardiac deaths hereditary
Paternal jeopardy
Carried to safety
Paving the way
Genetic aid
The origin of species
Catch 22
Right division
A cell tracks its chromosomes in order to split
VIETNAM
Sterile fathers, sterile sons
Not sure?
Hunt on for cataract gene
Aching back: a family legacy
INDIA