Because variations occur in sexual reproduction and these variations accumulate generation after generation . thus organisms resemble their parents more.................
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The organism either human or organisms resembles their parents for some genetic reasons.

The cells in a woman and a man's body both give them to the child, but as the child grows, he or she also develops his or her own cells and therefore makes them not so similar to their parents.

The other reasons because when an offspring is born sexually it takes the genes both from the mother and father it takes 23 from each and when it does it becomes better than both of them it has more chance of survival sexually the offspring resembles their offspring.
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