Shared Flashcard Set

Details

A Ch. 11
DNA and the Language of Life
19
Biology
10th Grade
03/17/2009

Additional Biology Flashcards

 


 

Cards

Term
Virus
Definition
package of nucleic acid wrapped in a protein coat that must use a host cell's machinery to reproduce itself
Term
Bacteriophage
Definition
virus that infects bacteria; also called a "phage"
Term
Deoxyribonucleic Acid (DNA)
Definition
molecule responsible for inheritance; nucleic acid that contains the sugar deoxyribose
Term
Nucleotide
Definition
building block(monomer) of nucleic acid polymers
Term
Nitrogenous base
Definition
single or double ring of carbon and nitrogen atoms with attached functional groups, found in nucleic acids
Term
Double helix
Definition
two strands of nucleotides wound about each other; structure of DNA
Term
DNA Replication
Definition
process of copying DNA molecules
Term
DNA polymerase
Definition
enzyme that makes the covalent bonds between the nucleotides of new DNA strands
Term
RNA (Ribonucleic Acid)
Definition
nucleic acid containing the sugar ribose
Term
Transcription
Definition
process by which a DNA template is used to produce a single-stranded RNA molecule
Term
Translation
Definition
process by which a sepuence of nucleic acids in RNA is used to direct the production of a chain of specific amino acids
Term
Codon
Definition
in RNA, a three-base "word" that codes for one amino acid
Term
Messenger RNA (mRNA)
Definition
RNA molecule transcribed from a DNA template
Term
RNA polymerase
Definition
transcription enzyme that links RNA nucleotides together
Term
Transfer RNA (tRNA)
Definition
RNA that translates the three-letter codons of mRNA to amino acids
Term
Anti-codon
Definition
in tRNA, a triplet of nitrogenous bases that is complementary to a specific codon in mRNA
Term
Ribosomal RNA (rRNA)
Definition
RNA component of ribosomes
Term
Mutation
Definition
any change in the nucleotide sequence of DNA
Term
Mutagen
Definition
physical or chemical agent that causes mutations
Supporting users have an ad free experience!