Molecular Genetics: Part 2: Structure of the DNA Flashcards
1
Q
Describe the structure of a DNA
A
A double helix shaped like a twisted ladder.
2
Q
What does a DNA consist of?
A
It consists of two complementary strands running in opposite directions from each other.
3
Q
What is a DNA made of?
A
It is made of repeated units of Nucleotides.
4
Q
What does a Nucleotide consist of?
A
A 5-carbon sugar, a phosphate molecule, and a nitrogenous base.
5
Q
What nitrogenous bases does the nucleotide of a DNA consist of?
A
Adenine-Thymine, Guanine-Cytosine.
A and T are always together. G and C are always together. They are connected together using hydrogen bonds.
