Answers

2015-03-10T22:42:23+05:30
Yes heredity depends on the three bases.  male has x,y chromosomes and female has only y chorosome. so it depends on chrosomes.mostly evloution occurs by cross pollination so it depends on physical.
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  • Brainly User
2015-03-13T21:29:26+05:30
By physical it depends on sex organs 
by chromosome like XY in male and XX in female
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