Multiple choice

Gestation period of 280 days is calculated from time of

  1. Last menstruation

  2. Fertilization

  3. Next menstruation

  4. Puberty

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A Correct answer
Explanation

The gestation period of a human, from time of conception to birth is approximately 9 months (266 days/38 Weeks). It is calculated from the first day of the last menstrual period.