Lecture 4 Flashcards
chromosome
a strand of DNA that carries genes and functions of hereditary information
genes
segments of DNA that determine specific trait
DNA
It is a polymer of simple units called nucleotides with a four letter sequence ( A, C, G, T )
Nucleic Acid
Long chains of repeating units called nucleotides
nucleotide^n = nucleic acid
Nucleoside
base bound to a ribose or desoxyribose sugar
base + 1 sugar = nucleoside
Nucleotides
monomers for nucleic acids composed by nucleoside and phosphate
nucleoside + 1 phosphate = nucleotide
Base
required to form nucleosides to provide the molecular structure for the H+ bonding
Purines
Compounds containing two rings 1 C and 1 N
Adenine and Guanine
pyrimidine
compounds containing one C-N ring
Cytosine, Thymine, and Uracil
Base pairs
pyrimidines and purines form base pairs to create the double stranded structure of DNA
RNA monomers
- phosphate group
- ribose
- nucleic base
DNA monomers
- phosphate group
- deoxyribose
- nucleic base
Nucleic bases for RNA
Adenine
Guanine
Cytosine
Uracil
NO THYMINE
Nucleic bases for DNA
Adenine
Guanine
Cytosine
Thymine