science test Flashcards
What do genes code for?
Polypeptides (proteins)
DNA contains what?
Genes and sequences of nucleotide bases
Are used to build cells and do much of the work inside cells
Proteins
Proteins are made up of what?
Amino acids
Amino acids are linked together by what?
Peptide bonds
How many types of amino acids exist?
20
Amino acid chains are called what?
Polypeptides
DNA is found where?
Inside the nucleus
Proteins are made in the _______ of cells by the organelles called _________.
Cytoplasm; ribosomes
May be free floating in the cytosol or attached to the surface of the rough ER
Ribosomes
DNA’s code must be copied and taken to the _________.
Cytosol
In the cytoplasm, the DNA code must be read so amino acids can be assembled to make __________.
Polypeptides (proteins)
The process of amino acids making proteins or polypeptides is called what?
Protein synthesis
________ is the master plan
DNA
_______ is the blueprint of the master plan
RNA