Twins with different fathers.
Verma
R S
RS
Luke
S
S
Dhawan
P
P
D002887:Chromosomes, Human, Pair 18; D005260:Female; D005819:Genetic Markers; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D010334:Paternity; D010375:Pedigree; D014429:Twins, Dizygotic / Q000235:genetics*; D014998:Y Chromosome
D005819:Genetic Markers