Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
|
generalized transformation
|
ability of certain phages to transduce any gene in the bacterial chromosome. occurs in lysogenic phages where they pick up pieces of bacterial genome in faulty head stuffing.
|
|
|
specialized transduction
|
phage can only transduce certain genes of bacteria- this is because specialized transducers insert into bacterial chromosome at one position only-when exiting, faulty outlooping occurs and so pick up genes close by
|
|
|
conjugation
|
union of two bacterial cells during which chromosomal material is transferred from donor to recipient cell
|
|
|
transformation
|
directed modification of a genome by external application of DNA from a cell of diff genotype
|
|
|
F-
|
do not carry f factor/pili, can only receive DNA transferred from F+ or Hfr
|
|
|
F+
|
carry F factor, can transfer f factor to f- bacteria
|
|
|
Hfr
|
has F factor integrated into bcteria, can transfer F factor and chromosomal DNA to F- bacteria
|
|
|
9:3:4
|
recessive epistasis
|
|
|
12:3:1
|
dominant epistasis
|
|
|
13:3
|
suppression
|
|
|
9:6:1
|
modifier (in reg proteins)
9 normal, 6 either low expression or bad protein, 1 low expression of defective proteins |
|
|
9:6
|
synthetic lethal- 2 mutations have a stronger effect when combined
|
|
|
9:7
|
complementation
|
|
|
15:1
|
duplicate genes
|
