His brother was diagnosed with schizophrenia a long time ago.

This fabric has high color fastness, so it is hard for the color to fade even when washed.

In our body's cells, there are two types of chromosomes: autosomes and sex chromosomes.

Sex chromosomes play an important role in determining the sex of an organism.

In this chemical reaction, a specific isotope is produced.

She wrote her name in cursive script.

This sentence is written in bold typeface.

This pathogen is very dangerous to humans.

There is a possibility that unknown lifeforms exist on this planet.

He is deeply researching the theory of real number fields.