chapter 4 section 2 Flashcards
1
Q
DNA
A
deoxyribonucleic acid a molecule that is present in all living cells and that contains the information that determines the traits that a living thing inherits and needs to live
2
Q
nucleotide
A
in a nucleic- acid chain, a subunit that consist of a sugar, a phosphate, and a nitrogenus base.
3
Q
RNA
A
ribonucleic acid, a molecuke that is present in all living cells and that plays a role in protein production.
4
Q
ribosome
A
a cell organelle composed of RNA and protein the site of protein synthesis
5
Q
mutation
A
a change in the nucleotie- base sequence of a gene or DNA molecule
