The Phase Variation is the reversible ability of some bacteria to turn an and off the expression of genes coding for the surface antigens .
While the Antigenic Variation is the modification of the gene for an expressed surface antigen by genetic recombination with one of many variable unexpressed DNA sequences.
In this manner , the expressed surface antigen can assume many different antigenic structures
synthesis phase synthesises while analysis phase analyses
The S phase is the DNA Synthesis phase, when the number of chromatids doubles.
1 by crossing over in prophase I , 2 by independent assoartment and 3 by mutations in s phase .1 by crossing over in prophase I , 2 by independent assoartment and 3 by mutations in s phase .Meiosis produces variation in gametes by crossing over & independent assortment also called reshuffling of genetic material . Such gametes after fertilization produce offspring with different characters .
In simplier form it occurs in the Interphase.
The G phase of the cell cycle is split into two sub-phases: the G1 and G2 phases. In between these two phases is the S phase (the synthesis phase). One can say the G phase (or the first of the two G sub-phases) occurs before the S phase.
Causes antigenic diversity in pathogens that contribute to more virulence- adaptive system must account for new targets.
Relation between phase difference and path difference is path difference/wavelength=phase difference/2*pi
Yes, there a difference between three phase and single phase electrical supply services.
You can measure the phase difference between 2 pendulums by measuring the distance between the two. The amount it comes out to will be the difference.
What is the difference between cw and steady at lock-on phase? I don't know.
a phase is a region with homogeneous (uniform) properties and a conversion between states is called a "phase transition"
Yes, there is a difference between single phase and three phase circuits.
The difference in the crystal structure of the anatase phase and rutile phase
what is the difference betwee two stage and two phase sampling
The difference between frequency modulation and phase modulation is that with frequency modulation the angular frequency of the signal is modified while with the phase modulation, the phase angle of the signal is modified.
Most variation occur in Ana phase because the chromosomes reach to their poles.