DNA Structure

What are the three components of nucleotides?
- Phosphate group
- Pentose sugar
- Nitrogenous Base
What forms the backbone of the double helix structure of DNA?

Sugar-Phosphate
What forms the "rungs" of the DNA structure?

Nitrogenous base pairs
What are the two types of nitrogenous base pairs?
- Purines: Guanine (G) and Adenine (A)
- Pyrimidine: Cytosine (C) and Thymine (T)
When does the condensation of chromatid material occur?

Late interphase to prophase
When in the cell cycle are chromosomes replicated into two sister chromatids?

"S" phase of interphase
When chromatid material condenses, what structure do they wrap around?

Histomes
DNA + Histomes = ?

Nucleosomes

Author

chanchan27104

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Card Set

DNA Structure

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jdfklsa

Updated

2015-03-26T22:54:12Z

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