1. Module 6

1.10. Page 3

Lesson 2

Module 6—Mendelian Genetics: The Transmission of Traits to the Next Generation

Read

 

Phenotypically dominant individuals can either be homozygous dominant or heterozygous. There is no way to determine which genotype they have simply by looking at them. To determine the genotype, geneticists conduct test crosses. Recall the information from the video, or read “Test Cross” on page 591 of your textbook. Ensure that you understand how and why a test cross is performed.

 

Try This

 

TR 9. Writing down crosses and creating Punnett squares is a must for any student of genetics. Using your skills, complete Practice Problem 2 on page 591 and Practice Problem 3 on page 596 of your textbook. Consult with your teacher to clarify your answer and store your work in your course folder.