Examlex
Each person has about ______ genes.
Cells
The basic structural, functional, and biological units of all living organisms, acting as the building blocks of life.
Molecules
Molecules are two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
Cytology
The branch of biology that studies cells, their structure, function, and significance in health and disease.
Molecular Biology
Molecular biology is the branch of biology that focuses on the molecular basis of biological activity, including the interactions between DNA, RNA, proteins, and their synthesis.
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