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5 Cards in this Set

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  • Back

Nuclear envelope

separates nucleus from cytoplasm. lipid bilayer

Nuclear pores

control the movement of substances between nucleus and cytoplasm

Nucleoli

Produce Ribosomes. Cluster of protein, DNA and RNA not enclosed by a membrane


RNA synthesis

Genes

biological unit of hereditary located on a


chromosome= molecule of DNA coiled with


proteins.consists of genes that control cellular structure and direct cellular functions. The entire mass is called a Chromatin.


The entire genetic information carried in a cell or an organism is its genome.





Chromatin

beads-on-a-string structure. each bead is called a nucleosome that consist of double stranded DNA wrapped twice around a core of 8 proteins called Histones. the string between the beads is called linker DNA.