3' 5' 30nm fiber 146 nucleotide pair Acetylation Antiparallel Centromere Chromatin Chromatin Remodeling Chromosomal Scafflold Deoxyribose DNA DNA Replication Double Helix Euchromatin Genes Heterochromatin Histone H1 Histone H2A Histone H2B Histone H3 Histone H4 Hydrogen Bonds Linker DNA Methylation MARS Nucleosome Nucleotide Phosphodiester Bond Polarity Purine Pyrimidine RNA Supercoiling Telomere Transformation Vocabulary for Concept Map 2
3' end: This is the end of a DNA or RNA strand that terminates with a free 3' hydroxyl group. It is essential in DNA replication and transcription processes. DNA replication occurs in the 5’-3’ direction.
30nm fiber: A structural organization of chromatin in the cell nucleus, representing a more compacted form of chromatin compared to the 10nm fiber.
146 nucleotide pair: A reference length of DNA sequence corresponding to the number of base pairs typically found in one complete turn of the DNA double helix.
Acetylation: A chemical modification of histone proteins in chromatin, which can affect gene expression by making the DNA more accessible for transcription.
Antiparallel: A term describing the arrangement of the two DNA strands in the double helix, where one strand runs in the opposite direction of the other.
Centromere: A specialized region on a chromosome that plays crucial role in the segregation of chromosomes during cell division.
Chromatin: A complex of DNA and proteins (histones) that makes up the genetic material in eukaryotic cells, serving as a packaging and regulatory structure.
Chromatin Remodeling: The process of modifying the structure of chromatin to regulate access to DNA and control gene expression.
Chromosomal Scaffold: A protein structure that helps maintain the overall organization of chromatin within the cell nucleus.
Deoxyribose: A sugar molecule found in the backbone of DNA, forming the structural component of nucleotides.
DNA (Deoxyribonucleic Acid): This is the genetic material in most living organisms, consisting of a double helix structure of nucleotides.
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