Bio 201 S14 Class 4 2 3 14 v2(2)

The next genera4on has dierent propor4ons of

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Unformatted text preview:   Individuals with trait variants that allow increased survival and reproduc4on leave more offspring in the next genera4on than individuals with other variants. •  The next genera4on has different propor4ons of heritable trait types than the parent genera4on (=evolu4on) and those traits that increase survival and reproduc4on are at SLIDE 2 higher frequency (=natural selec4on). 5. Natural selec4on is non- random, muta4ons are random •  Muta4ons are copy errors that occur in DNA as it is replica4ng itself when making new cells. •  Muta4ons are random with respect to what the organism...
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