At conception
A) there are twice as many females conceptions are male conceptions.
B) between 107 and 170 males are conceived for every 100 females.
C) there are as many females conceptions as there are male conceptions.
D) there are 130 females conceptions for every 100 male conceptions.

Question

Quizplus · Accepted Answer

At conception, there is a slight bias towards male conceptions, with an estimated ratio of 107 to 170 males for every 100 females. Therefore, option B is the best choice. Option D is incorrect because it suggests a bias towards female conceptions, which is not supported by evidence. Option A is also incorrect because there is no evidence to suggest that there are twice as many females conceived at conception. Option C is also incorrect because it suggests an equal number of male and female conceptions, which is not supported by evidence.

At Conception