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CH 11
CHS9 Chugh
23
Biology
9th Grade
01/30/2013

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Term
DNA
Definition
deoxyribonucleic acid 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
pyrimidine
Definition
single-ring nitrogenous base
Term
purine
Definition
double-ring nitrogenous base
Term
DNA base pairs
Definition
[image]
Term
Sugar-phosphate backbone
Definition
[image]
Term
Transforming factor
Definition
when the trait from one bacteria crosses over into other bacteria. DNA
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
DNA polymerase
Definition
enzymes that make the covalent bonds between the nucleotides of the new DNA strand
Term
Nitrogenous bases
Definition
Thymine Adenine Guanine Cytosine
(Uricil RNA)
Term
translation
Definition
sequence of nucleic acids in RNA is used to direct the production of a chain of specific amino acids
Term
Codon
Definition
three letter for an amino acid
Term
Mutagen
Definition
the physical and chemical agents that cause mutations
Term
transcription
Definition
the making of RNA
Term
RNA polymerase
Definition
the enzyme that links the RNA nucleotides together
Term
intron
Definition
internal noncoding region in RNA transcript
Term
exon
Definition
coding region in RNA transcript
Term
RNA splicing
Definition
process by which the introns are removed from RNA transcripts and the remaining exons are joined together
Term
transfer RNA (tRNA)
Definition
RNA that translates the three-letter codons of mRNA to amino acids
Term
anticodon
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
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