DNA structure Flashcards
1
Q
name of the biochemical known as DNA?
A
DNA stands for deoxyrribonucleic acid
2
Q
Functions of DNA
A
genetic information to code for proteins, must copy perfectly to get information from cell to cell
3
Q
What is the name of the repeating chemical units in DNA
A
nucleotides
4
Q
Three components of a nucleotide
A
1) phosphate group
2) sugar/ deoxyribose
3) nitrogenous base
5
Q
Name of the sugar in DNA
A
deoxyribose
6
Q
Two categories of nitrogenous bases? Which base belongs to each category?
A
1) purines: adenine and guanine
2) pyrimidines: cytosine and thymine
7
Q
how do single strands of DNA bond together to form a double stranded DNA molecule
A
the sugar of one nucleotides connects with the phosophate of another
8
Q
What are the base pairing rules for nucleotides
A
A-T and C-G
