Question

In human beings, usually the gestation period lasts for about ......... days, from beginning of the last menstrual cycle.

• A. 280
• B. 266
• C. 256
• D. 243

Hint:

Gestation period is counted from {LMP (Last Menstrual Period)}, not fertilization.

Answer 1

The Correct Option is A

Step 1: Definition of gestation period.
Gestation period is the time from the beginning of the last menstrual cycle to childbirth.
Step 2: Standard medical calculation.
In humans, pregnancy lasts approximately 40 weeks.
Step 3: Conversion into days.
40 weeks × 7 days = 280 days.
Step 4: Conclusion.
Therefore, the correct gestation period from the last menstrual cycle is 280 days.