intercalatingagent | | A type of mutation that occurs as a result of exposure to natrual radiation that alters structure of DNA bases. |
auxotroph | | Represses the SOS regulatory system. |
revertant | | a type of mutagen that forms pyrimidine dimers (thymine dimers). A type of radiation. |
competent | | When plasmids are removed from a cell the cell is said to be ____ of plasmids |
ionizing | | A strain in which the wild-type phenotype that was lost in a mutant is restored. |
lysogenic | | Part of the cycle that is characterized by integration of the bacteriophage nucleic acid into the host bacterium's genome. The newly integrated genetic material, called a prophage can be transmitted to daughter cells at each subsequent cell division, and a later event (such as UV radiation) can release it, |
missense | | A combination of host and viral genetic material which gets passed on through reproduction. |
nonsense | | A type of mutation that is not naturally occuring and usually happens in vitro to purposfully bring about a mutation. |
prototroph | | The visual characteristics of the genotype. |
lexa | | A type of screening method used for the detection of nutritional mutants. 2 words |
induced | | Group formed when similar plasmids try to coexist with one another in the same cell. |
replicaplating | | A cell that is able to take up DNA and be transformed is said to be. |
recombination | | A strain carrying a mutation |
transduction | | Genetic elements tha treplicate independently of the host chromosome. |
point | | Mutagenicity test for carcinogens. 2 words |
phenotype | | A type of selection that kills all growing prototrophic strains and leaves behind non growing auxotrophic strains. |
basepairanalogs | | A type of mutation that occurs when a base pair is switched but do to the wobble hypothesis has no affect on the coded amino acid or protein |
conjugation | | A type of mutation that occurs with an insertion or deletion of a base nucleotide. |
complementation | | A type of mutation that form a stop codon resulting in the premature termination of translation. |
penicillin | | A type of transduction in which DNA from a specific region of the host chromosome is integrated directly iinto the virus genome usually replacing some of the virus genes. |
suppressor | | A type of mutagen that become inserted between two DNA base pairs and in the process push them apart. 2 words |
transformation | | A mode of genetic exchange that transfers genetic information between cells through cell to cell contact. |
lytic | | A type of mutation involving the change in one base pair. |
frameshift | | A type of mutation that occurs when changed in base occurs in the first or second spot of a codon often resulting in significant changes. |
screening | | a type of strain or mutant that has all of the necessary nutritional requirements to grow. |
mutant | | The founder of this experiment in which live rough avirulent and dead smooth virulent cells were combined together and transformed to produce live virulent cells. |
phageconversion | | a type of strain or mutant that does not have all of the necessary nutritional requirements to grow. |
incompatibility | | Missing phrase2 - 5 |
generalized | | An altered phenotype or mutant phenotype. 2 words |
griffith | | Part of the cycle that results in the destruction of the infected cell. |
plasmid | | A mode of genetic exchange that occurs when the donor DNA transfer is mediated by a virus. |
amestest | | A type of radiation that is the most powerful and causes the ionization of substances. |
specialized | | A change in the base pairs of a genome. |
uv | | An isolation process by which certains trains are able to survive their parental strains under enviornmental conditions and live on. |
prophage | | The physical exchange of genes between genetic elements. |
selection | | Founder of this experiment discovered conjugation as a means of genetic recombination. |
wildtype | | A type of mutation that compensates for the efect of the original mutation and restores the original phenotype. |
curing | | Founder of this experiement famous for the U-tube experiement in which transformation could take place in a tube rather than in mice. |
spontaneous | | A type of regulatory system in which DNA repair occurs in the absence of a template instruction |
avery | | A isolating process by which large numbers of colonies are examined and different looking colonies are picked. |
SOS | | A type of transduction in which host DNA derived from any portion of the host genome becomes a part of th virion DNA in place of virus genome. |
mutagen | | A mode of genetic exchange in which DNA is released from one cell and is taken up by another. |
mutation | | ANy chemical, physical and biological agents that can increase the rate of mutation. |
silent | | When a cell is lysogenized by a normal phage and its DNA is converted to the prophage state. |
tatum | | Molecules that resemble purines and pyrimidine bases in structure yet display faulty pairing properties. 3 words |