DNA Structure And Function Flashcards
(7 cards)
1
Q
Where is DNA found?
A
In the nucleus of eukaryotic cells.
In the cytoplasm of prokaryotic cells.
2
Q
What is the structure of a nucleotide?
A
Phosphate - deoxyribose sugar - nitrogenous base
3
Q
What are the 4 Nitrogenous bases?
A
- cytosine (C)
- guanine (G)
- thymine (T)
- adenine (A)
4
Q
What is DNA?
A
DNA is a double helix structure made of two antiparallel strands of nucleotides linked by hydrogen bonding between complimentary base pairs.
5
Q
What is the strand being held together by?
A
It is held toghether by hydrogen bonds between the bases
6
Q
What are the complementary base pairings?
A
Adenine (A) only pairs with Thymine (T)
Guanine (G) only pairs with Cytosine (C)
7
Q
Why is DNA called the blueprint of life?
A
DNA contains the instructions needed for an organism to grow,develop, survive and reproduce
