can someone explain why sexually produced organisms vary in charactersitics??

i undersatnd the whole concept about the genes...meiosis and the crossing over of information..but i think that's a little high and dry

2 answers

Sexually produced organisms combine the genes from both parents. It's a toss-up to see how many genes come from each parent.

My favorite example is the fraternal twins, Larry and Jerry. Larry is small-boned and dark-haired. Jerry is large-boned and blond. Larry seems to have gotten his physical genes from his mother, while Jerry inherited his father's characteristics.
oooo ok. thnx much.. i get the drift, was kinna hard for me to word it