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The graph below shows the chance of a woman becoming pregnant, following sexual intercourse, on the days before and after ovulation - Scottish Highers Human Biology - Question 11 - 2016
Question 11
The graph below shows the chance of a woman becoming pregnant, following sexual intercourse, on the days before and after ovulation. The chance of becoming pregnant... show full transcript
Worked Solution & Example Answer:The graph below shows the chance of a woman becoming pregnant, following sexual intercourse, on the days before and after ovulation - Scottish Highers Human Biology - Question 11 - 2016
Step 1
On which day in May would having sexual intercourse give her the best chance of becoming pregnant?
Answer
To determine the best day for sexual intercourse to maximize the chance of becoming pregnant, we first observe the graph. It shows that the highest probability of becoming pregnant occurs shortly after ovulation.
Given that this woman ovulates on the 3rd of May, the peak chance of pregnancy generally occurs from approximately 0 to +2 days after ovulation. Therefore, the days with the highest chance for conception would be the 3rd and 4th of May.
Subsequently, if we look at the options, we find that:
- 3rd May is the day of ovulation itself.
- 29th May is 26 days after the start of the cycle.
As the 3rd May is too early for the options and given the cycle's reproductive opportunity, 29th May is the best option, as it provides a viable window for conception post-ovulation. Thus, the answer is C 29th May.