chapter 4

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Nuclear Envelope

The two layered membrane that encases the nucleus of a eukaryotic cell, which separates the nucleus from other cell organelles

DNA

a self-replicating material present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

Chromosomes

are tightly coiled bundles of DNA and protein found in the nucleus of most living cells

nucelar pore

is a protein-lined channel channel in the nuclear envelope that regulates the transportation of molecules between the nucleus and the cytoplasm

Nucleolus

is the round body that sits inside the nucleus of a eukaryotic cell and makes ribosomal subunits from proteins and ribosomal RNA

Nucleus

most prominent membrane-bound organelle in eukaryotic cells, and it houses most of a cell's DNA

RNA

used in all steps of protein synthesis and carries genetic information of many viruses


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