Natural Selection, Genetic Drift, and Gene Flow Do Not Act in Isolation in Natural Populations. Natural selection occurs when individuals with certain genotypes are more likely than individuals with other genotypes to survive and reproduce, and thus to pass on their alleles to the next generation.

Through this process of natural selection, favorable traits are transmitted through generations. Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species. It is one of the processes that drives evolution and helps to explain the diversity of life on Earth.

Darwinian selection

Transformants are the cells, especially bacteria, that have undergone a transformation. Generally, transformation is the main step of DNA cloning responsible for the production of a large number of copies of DNA of interest.

To select stable transformants, replace the medium after 12–24 h with HL5 plus the selection drug….Method I: Selection of Transformants in Liquid Media

1. i. Pipette the medium up and down to remove cells from the plate.
2. ii. Dilute the cells to yield one cell per well.
3. iii.

Another advantage of inserting a human gene into a bacterium is that you can mutate that gene at any location within its sequence. You can even cut out chunks of the gene. These mutations do not hurt the bacteria, which produces the protein from the mutated gene as it would do for any other gene in the plasmid.

Transformation, in biology, one of several processes by which genetic material in the form of “naked” deoxyribonucleic acid (DNA) is transferred between microbial cells. Its discovery and elucidation constitutes one of the significant cornerstones of molecular genetics.

Frederick Griffith