BI-1538
Continuous and discontinuous variation
Biology · Secondary 4 · Medium · Continuous and discontinuous variation
In a human population, the ability to roll the tongue is controlled by a single gene with two alleles. People either can roll their tongue or cannot. Why is this trait described as discontinuous variation?
- It has only a few distinct phenotypes with no intermediates
- It is strongly affected by environmental factors
- It shows a wide range of values that can be measured
- It is controlled by many genes and the environment
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.