Are sisters as closely related as mother and daughter?

Answer 1

no, not quite. a child gets it's genetic material from it's parents. half from the mother and half from the father. when reproductive cells divide the gametes(like sperm and eggs) that result are not exact copies each time either. when they are being produced in the body there is a factor or randomness that makes each gamete a little different. so sisters both get half their DNA from their mother and half from their father but it's not necessicarily the same half. so sisters have similar genetics but not the same. on the other hand mothers and daughters share some ofthe exact DNA, not all of it but some. so your DNA is more like your mothers than your sisters, unless you're an identical twin, then your the same amount of related to your sister and your mom!