Science Chp. 4 Flashcards
1
Q
DNA
A
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 sum unit that consists of a sugar, a phosphate, a nitrogenous base
3
Q
RNA
A
a nucleic 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
5
Q
mutation
A
a change in the nucleoctide-base sequence of a gene or DNA molecule
