The cell nucleus holds genetic information.

He exercises every day to keep his health.

He always keeps a smile on his face.

Cytogenetics is a science that studies the structure and function of chromosomes and genes.

Genetics plays a crucial role in passing on the characteristics of organisms to the next generation.

His blue eyes were genetically inherited from his mother.

In physics, the study of the 'nucleus' at the center of an atom is important.

This information is very important.

This cell is dividing very actively.

The number of nuclear-armed countries is increasing worldwide.