Chapter 12 Vocab Flashcards
virus that infects bacteria
Bacteriophage
monomer of nuclei can acids, made up of 5-carbon sugar, phosphate group and nitrogenous base
Nucleotide
principle that states that DNA bonds can only form between adenine and thymine, and cytosine and guanine
Base pairing
visible in nucleus, DNA coiled around proteins
Chromatin
globular protein that has DNA coiled around it
Histone
cell duplicates its DNA
Replication
enzyme which proofreads new strands of DNA, helping make sure the copy is nearly identical to the original
DNA polymerase
DNA that codes for a protein and determines a trait
Gene
molecule of RNA that carries copies of instructions to make amino acids into proteins from DNA to the rest of the cell
mRNA
type of RNA that makes up most of the ribosome
Ribosomal RNA
type of RNA that transfers amino acids to ribosomes during protein synthesis
tRNA
part of nucleotide order of DNA is copied into complementary order in RNA
Transcription
enzyme like DNA polymerase that connects to DNA and separates the strands during transcription
RNA polymerase
part of DNA that tells the enzyme where to bind to make RNA
Promoter
does not code for a trait, intervening sequence of DNA
Intron