DNA (Polymers) Flashcards
1
Q
What is a chromosome?
A
The long DNA molecules are usually held in tightly coiled structures called chromosomes
2
Q
What are genes?
A
Small sections of DNA located on a chromosome, which codes for transfer of genetic information, are called genes
3
Q
Why is DNA considered a polymer?
A
It is made up of repeating monomers called nucleotides
4
Q
What is a nucleotide?
A
A phosphate, sugar and nitrogen base
5
Q
How are the bases joined together?
A
By weak hydrogen bonds between them
6
Q
How are nucleotides joined together?
A
By condensation reactions (the by-product is water)
7
Q
What does a DNA molecule consist of?
A
A double helix made up of two long polymer strands of nucleotides
8
Q
How many different monomers are found in the polymer strands of DNA?
A
4
