DNA General Flashcards
1
Q
What is DNA
A
material that comes from hereditary information
2
Q
What are nucleotides made of?
A
- phosphate group
- deoxyribose sugar (5C)
- nitrogen base (A-T, C-G)
3
Q
What holds the sugar-phosphate backbone together?
A
Phosphodiester bonds
4
Q
What holds sugar and the bases together?
A
Glyosidic Bonds
5
Q
What are the key characteristics of DNA?
A
- double helix structure
- anti - parallel
- complimentary
- new dna from 5’ to 3’
- A fork is half a bubble
6
Q
Which functional group is found at the 5’ end? 3’?
A
5’ - phosphate
3’ - hydroxyl
7
Q
Which base is unique to DNA?
A
Thymine
8
Q
What are the differences between DNA and RNA?
A
RNA: single bonded, small, uracil, ribose backbone, does specific task
DNA: double standed, big, thymine, deoxyribose backbone
9
Q
Purines
A
Adenines, Guanines - double ring
10
Q
Pyrimidines
A
Cytosine, Thymine - single ring
