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

The pyramidalis muscle is one of the muscles located in the human abdomen.

His character is two sides of the same coin, with kindness and strictness coexisting.

He is good at reading simplified Chinese characters.

He is dedicated to the study of autosomes.

In physics, blackbody radiation is a very important concept.

He is immersed in the study of ancient seal script.

His amygdala is working very actively.

This compound is a kind of glycoside.

Cone cells are the main visual receptors for recognizing colors.