1.

What can cause the deviation from 1:1 sex ratio in natural habitat?​

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Answer:

Explanation:

  • Failure in separation of DNA during MEIOSIS can CAUSE the disturbance in 1:1 sex ration .

       example 1.turners syndrome ; cause due to absence of one X       CHROMOSOME

              2. klinifelters syndrome ; occurence of an extra X chromosome.

  • practicing abortion in a desire of a SPECIFIC sex.
  • Genetic drift.

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