Whole segments of genome exchange abruptly as two flu viruses infect the
same cell to create a new strand. There are two mechnisms by which
happens — ( #ASK ) the crossing-over mechnism and genome segment
reassortment
1.1.1 Crossing-over
Self-mixing of ozaki fragments during viral recombination in the
KBhBIO101DNAReplication process
cause sudden mutations
1.1.2 Genome Segment Reassortment
Two viruses coinfect the same cell, causing cross-talk in swapping
segments
1.2 Genetic Drift
This usually occurs due an error in a polymerase-driven process, where
single/groups of nucleotides flip slowly over time due to mistakes in
KBhBIO101RNAReplication.
The former is an environment-dependent process, where the latter is able
to be modeled as it is due to predictable transcription mistake.