chapter4 Flashcards
1
Q
DNA
A
deoxyribonucleic acid a molecule that is present in all living cells 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 subnit that consists of a sugar a phosphate and a nitrogenous base
3
Q
RNA
A
ribnucleic acid a molecule 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 nucleotide base sequence of a gene or DNA molecule
