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Genetics
n/a
22
Biology
Undergraduate 2
03/01/2011

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Term
Adenosine
Definition
pentane cyclohexane nh2 group on top of cyclohexane
Term
Guanine
Definition
pentane cyclohexane nh2 group bottom right of cyclohexane double bonded O on top of cyclohexane
Term
Thymine
Definition
cyclohexane with double bonded O on top and bottom right CH3 group on top left
Term
Cytosine
Definition
cyclohexane double bonded O on bottom right nh2 group on top
Term
Uracil
Definition
cyclohexane double bonded O on top and bottom right H in top left
Term
Crossing over
Definition
Occurs in pachynema of prophase 1
Term
Coeficient of coincidence
Definition
observed double recombinants/exp number
Term
Bacteriophage
Definition
made up of head containing dna, tail, simple genome 48,500 base pairs
Term
Circularly permutated
Definition
refers to the fact that cutting the circular chromosome changes the overall gene order in the linear molecule.
Term
Concatmerisation
Definition
long continuous DNA molecule that contains multiple copies of the same DNA sequences linked in series.
Term
Transformation
Definition
Uptake of free DNA, no cell contact required, sensitive to DNAse
Term
Conjugation
Definition
Direct transfer of DNA from bacterium to another, cell contact required, not sensitive to DNAse
Term
Transduction
Definition
Transfer of bacterial DNA using a bacteriophage, no cell contact required, not sensitive to DNAse
Term
Streptococcus
Definition
Virus used in experiment by Griffith to show a heat killed bacteria can be transferred to a non-virulent cell.
Term
Conjugation
Definition
Requires a plasmid called F factor
Term
Ribosome, Telomerase, Spliceosome
Definition
Enzymes made up of protein and rna
Term
3
Definition
Number of H bonds between C-G bases in DNA
Term
Ligase
Definition
Responsible for sealing up nicks in DNA
Term
Origin, promoter
Definition
DNA replication begins at an _____ but transcription begins at a ______
Term
Supercoiling, histone, nucleosomes
Definition
In prokaryotes, chromosomal dna is packaged through ______. In eukaryotes dna is packaged with ______ proteins into ________
Term
Lambda phage virus
Definition
Can mediate DNA transduction
Term
Episomes
Definition
Non-essential DNA elements within a bacterial cell
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