Why did gregor mendel study pea plants? they exhibit only a single trait. they produce flowers. they are easy to grow. they reproduce sexually.

The correct answer would be "they reproduce sexually".

Gregor Mendel used the pea plant Pisum sativum as a model system for his genetic studies. It is because:

They reproduce sexually and thus, inheritance of characters from parents to the offspring can be studied easily. They have a very short life cycle which makes it possible to study a number of generations in a short period of time. They produce a large number of seeds and thus, a good number of observations could be observed. Self-fertilization and cross-fertilization were easy in this plant. It also aids in producing true-breeds.