Four different types of pea plants are self-fertilized to obtain the following three groups of progeny: 
Group 1: Round seeded pea plants= 101, wrinkled seeded pea plants= 99 
Group 2: Round seeded pea plants= 99, wrinkled seeded pea plants= 0 
Group 3: Round seeded pea plants = 90; wrinkled-seeded pea plants = 30. 
Identify the group of progeny that is the result of a cross between two heterozygous parents: