Acquired and Inherited Traits

Question 1 • IS - O - 3490 - The Living Earth B CP Online

Which of the following did you include in your response?

Answer

Since identical twins share the same genetic information, differences between twins must be caused by environmental factors.

Fraternal twins only share 50% of their genes. If fraternal twins show the same trait, there may be an environmental cause.

Studying identical and fraternal twins allows scientists to estimate how genes and the environment interact.

Lesson 4: Non-Mendelian Inheritance

Virtual Lab

Lab: Mouse Genetics (Two Traits)