Glossary of terms used on this site

Glossary of biology.

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Glossaries

Term Main definition
nucleoplasm
Glossaries - Biology glossary

semi-solid fluid inside the nucleus that contains the chromatin and nucleolus

nucleotide
Glossaries - Biology glossary

monomer of nucleic acids; contains a pentose sugar, one or more phosphate groups, and a nitrogenous base.

nucleotide excision repair
Glossaries - Biology glossary

type of DNA repair mechanism in which the wrong base, along with a few nucleotides upstream or downstream, are removed

nucleus
Glossaries - Biology glossary

core of an atom; contains protons and neutrons

nucleus
Glossaries - Biology glossary

cell organelle that houses the cell’s DNA and directs ribosome and protein synthesis

nucleus-first hypothesis
Glossaries - Biology glossary

proposal that prokaryotes acquired a nucleus first, and then the mitochondrion

nutrient
Glossaries - Biology glossary

essential substances for growth, such as carbon and nitrogen

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