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.
Here is how I think about this distinction, which at least partly incorporates the prior answers. For biochemistry, a polymorphism is one of multiple alternative forms within a protein or nucleic acid sequence. For genetics, a polymorphism refers to genetic variants within the population that allow evolution by natural selection. A mutation is a change in nucleic acid sequence, such as in the sequence of a gene or its regulatory elements.