Zusammenfassung der Ressource
12-2: DNA
Replication and
Chromosomes
- Chromosomal Structure
- Chromatin: substance, tightly packed DNA and proteins
- Proteins are called "histones"
- Nucleosome: bead-like structure, DNA and histone
- Nucleosomes have some DNA and histones
- DNA Replication
- occurs in many places, proceeds in both
directions until DNA is completely copied
- complementary strands: strands that can
be used for production of other strands
- DNA molecule separates, produces two
new complementary strands following
rules of base-paring
- DNA Polymerase: enzyme used in replication