But Prime is just one of Amazonâs subscription businesses, which now include offerings like Subscribe & Save, Amazon Instant Video, Amazon Mom and Amazon Web Services. This explosion of the subscription business model has led to a spike in mergers and acquisitions activity. Witness Facebookâs $19 billion acquisition last year of the subscription-based messaging platform WhatsApp or Charles River Ventureâs recent investment of $4 million into subscription-box company Cratejoy.
Random Chromatid Assortment. A third source of genetic diversity occurs during meiosis II, in which the sister chromatids separate and are randomly distributed to the daughter cells, the gametes. Crossing over in meiosis I leads to non-identical chromatids in meiosis II chromosomes.
There are three sources of genetic variation: mutation, gene flow, and sexual reproduction. A mutation is simply a change in the DNA. Mutations themselves are not very common and are usually harmful to a population. Because of this, mutations are usually selected against through evolutionary processes.Gene flow is the movement of genetic information between different populations. This method increases genetic variation because introducing new alleles into a population increases the amount of diversity.ecause of this, mutations are usually selected against through evolutionary processes. Gene flow is the movement of genetic information between different populations. This method increases genetic variation because introducing new alleles into a population increases the amount of diversity.