The Nucleus, DNA, and Chromosomes

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nuclear pore

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

nucleus

The _________ is the most prominent membrane-bound organelle in eukaryotic cells, and it houses most of a cell's DNA.

nuclear envelope

The _______________ is the two-layered membrane that encases the nucleus of a eukaryotic cell, separating the nucleus from the cytoplasm.

Nucleus

The genetic center of the eukaryotic cell is the __________.

is rich in ribosomal RNA

The nucleolus __________.

nucleolus

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

Chromosomes

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

DNA

is the self-replicating material present in nearly all living organisms; it is the main constituent of chromosomes and the carrier of genetic information.

RNA

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


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