science ch. 4 notes Flashcards
1
Q
Deoxyribonucleic acid, a molecule that is present in all living thing cells and that contains the information that determines the traits that a kiving thing inherits and needs to live
A
DNA
2
Q
In a nucleic acid chain, a subunit that consists of a sugar, a phosphate, and a nitrogenous base
A
nucleotide
3
Q
Ribonucleic acid, a molecule that is present in all living cells and that plays a role in protein production
A
RNA
4
Q
A cell organelle composed of RNA and protein; the site of protein synthesis
A
Ribosome
5
Q
A change in the nucleotide- base sequence of a gene or DNA molecule
A
Mutation
