Multiple choice

Select the CORRECT statement regarding the worldwide frequency distribution of the different ABO blood types.

  1. It is much composite, having both clinal and discontinuous patterns.

  2. It follows latitude lines suggesting that climate plays a significant role for determining the above trait.

  3. It is predictable, with each continent having its own unique type among the inherent populations.

  4. The people of each continent have their own distinct blood type.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This suggests that natural selection, migrations, genetic drift, the founder principle, and non-random mating were all potentially important factors in our evolutionary history.

Keep practicing — related questions