His red hair is thought to be an atavism.

I am a member of that research association.

He needs special care because of his inherited disease.

He has a deep interest in archaeology.

He understands the importance of learning.

He is majoring in psychology.

Gaku is my best friend.

He is spending a lot of time on experimental research.

This allele greatly affects the inheritance of color vision.

By regularly checking the key performance indicators, you can understand the performance of the company and devise improvement measures.