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Biology-Related Homework Help General Biology Topic started by: megandunlap on Mar 30, 2018



Title: Adaptive evolution is constrained because natural selection acts on 1.traits an animal needs to ...
Post by: megandunlap on Mar 30, 2018
Adaptive evolution is constrained because natural selection acts on
  1.traits an animal needs to acquire in order to survive.
  2.existing genetic variation only.
  3.existing genetic variation plus new mutations.
  4.All of the options are correct.

Question 2

Sickle cell anemia is an example of
  1.founder effect.
  2.a genetic bottleneck.
  3.heterozygote advantage.
  4.genetic drift.
  5.gene pools.


Title: Adaptive evolution is constrained because natural selection acts on 1.traits an animal needs to ...
Post by: bcspears on Mar 30, 2018
Answer to q. 1

3

Answer to q. 2

3


Title: Adaptive evolution is constrained because natural selection acts on 1.traits an animal needs to ...
Post by: megandunlap on Mar 30, 2018
Wow! Thanks you for this correct set of answers, wasn't expecting it...


Title: Adaptive evolution is constrained because natural selection acts on 1.traits an animal needs to ...
Post by: bcspears on Mar 30, 2018
My pleasure!