vocabulary
DNA deoxyribonucleic genetic information encoding the primary
acid : stores sequence of proteins
Ribonucleic acid has several functions in
making proteins from info
-
RNA : in DNA
nucleotides built from a base : Monosaccharide (sugar) :
phosphoric acid
nucleoside base purine
:
or pyrimidine covalently bonded to either ribose or
2-deoxyribose
nucleic acid nucleotides polymerize into chains , forming either DNA or RNA molecules
form
primary structures from covalent bonding of nucleotide monomers to make the backbone
Oligonucleotide & chain of 50 or fewer nucleotides
Secondary structure nucleic acids is any stable structure taken up by some or all nucleotides
tertiary structure complex folding
DNA helix chains
double 2 polynucleotide run in opposite directions held in place by hydrogen bonds
B-form
3
forms of DNA
A form
2- form
gene Protein Sequence is stored in DNA ; a chromosomal Segment of DNA that has
specific base sequence
codon each amino dcid of a protein is encoded by a sequence of 3 adjacent nucleotides (AGT)
, Module 6 1 . : Structures of Nucleotides
·
most common nucleic acids are DNA:RNA
-
DNA : RNA constructed from monomeric structures = nucleotides
-
transmit genetic into that determines amino acid Sequence of proteins (primary structure
·
nucleotides function :
-serve as energy and communication in the cell
DNA : Stores genetic info encoding primary sequence of proteins
RNA : has several functions in protein from info in DNA
making
exists in several places
-
of cell ,
including nucleus
-3 main types of RNA cells
nucleic acids serve as :
① cofactor in enzymes
-
FAD
② second messenger
-
cyclic AMP : Communication tool
DNA : RNA are both polymers : Macromolecules
-bulit from set of monomers =
nucleotides
nucleotides : base are monosaccharides and phosphoric acid
↳ bases
are cyclic organic compounds containing nitrogen
Phosphoric
Acid
Sugar :
deoxyribose L
5
Base
HzPO4 4
I
3 2