Ответ:
В задании необходимо вставить пропущенные слова, образуя фразы. И составить с каждой из этих фраз предложения.
1) offspring generation
2) variation in plants
3) selective breeding
4) dominant allele
5) primary model system
6) fundamental principles of inheritance
Составлю предложения:
The traits in the offspring generation come from their parents.
There is a lot of variation in plants, which helps them survive in different places.
Selective breeding helps farmers grow plants with the best qualities.
A dominant allele will show its trait even if there's another different one.
Scientists often use mice as a primary model system to study how genes work.
Mendel’s experiments on peas helped us understand the fundamental principles of inheritance.