Shared Flashcard Set

Details

ch. 12 vocab sec. 1-3
biology
19
Biology
10th Grade
03/02/2011

Additional Biology Flashcards

 


 

Cards

Term
transformation
Definition
process in which one strain of bacteria is changed by a gene from another strain of bacteria
Term
bacteriophage
Definition
virus that infects bacteria
Term
nucleotide
Definition
monomer of nucleic acids made up of a 5 carbon sugar, a phosphate group, and a nitrogenous base
Term
anticodon
Definition
group of 3 bases on a tRNA molecule that are complementary to an mRNA codon
Term
translation
Definition
decoding of a mRNA message into a polypeptide chain
Term
codon
Definition
3 nucleotide sequence on messenger RNA that codes for a single amino acid
Term
exon
Definition
express sequence of DNA codes for a protein
Term
intron
Definition
sequence of DNA that is not involved in coding for a protein
Term
promoter
Definition
region of DNA that is not involved in coding for a protein
Term
RNA polymerase
Definition
enzyme similar to DNA polymerase that binds to DNA and separates the DNA strand during transcription
Term
transcription
Definition
process in which part of the nucleotide sequence of DNA is copied into a complementary sequence in RNA
Term
transfer RNA
Definition
type of RNA molecule that transfers amino acids to ribosomes during protein synthesis
Term
ribosomal RNA
Definition
type of RNA that makes up the major part of ribosomes
Term
messenger RNA
Definition
RNA molecule that carried copies of instructions for the assembly of amino acids into proteins from the DNA to the rest of the cell
Term
gene
Definition
sequence of DNA that codes for a protein and thus determines a trait
Term
base pairing
Definition
principle that bonds in DNA can form only between adenine and thymine and between guanine and cytosine
Term
chromatin
Definition
granular material visible within the nucleus containing the genetic info passed from one generation of cells to the next
Term
histone
Definition
protein molecule around which DNA is tightly coiled in chromatin
Term
replication
Definition
copying process by which a cell duplicated its DNA
Supporting users have an ad free experience!