Greer is an unusual first name for women but a very prominent last name for both adults and children (#552 out of 150436, Top 1%). (2000 U.S. Census). Displayed below is the birth name popularity of Greer for girls.Greer has yet to be ranked in the Top 1000 thus far.reer /greer/ [2 sylls.] as a girls' name (also used as boys' name Greer) is pronounced gryr. It is of Scottish and Latin origin, and the meaning of Greer is watchful, vigilant.
Polyploid. (genetics) an organism or cell having more than twice the haploid number of chromosomes.Of a cell or organism having more than twice the haploid number of chromosomes; a polyploid cell; a polyploid species .Organisms that possess two sets of each chromosome.
Polyploidy: Polyploidy,, the condition in which a normally diploid cell or organism acquires one or more additional sets of chromosomes. In other words, the polyploid cell or organism has three or more times the haploid chromosome number. Polyploidy arises as the result of total nondisjunction of chromosomes during mitosis or meiosis. Polyploidy is common among plants and has been, in fact, a major source of speciation in the angiosperms.