✔ 最佳答案
Hey.... I can only type English because I am in university in Canada.... so I can't type Chinese.... maybe I can help you, because I am studing genetics:
selective breeding: to obtain crop plants or domestic animal with desired phenotypic characteristics, such as hardiness, improved yields, or better taste.
genetic variation: refers to the variation in the genetic material of a population or species, and includes the nuclear, mitochodrial, ribosomal genomes as well as the genomes of other organelles. it is result of mutations of DNA
polyploidy: is opposite of euploidy, which is cell that contain more than the normal diploid number of chromosome sets. In human diploid means 46 chromosome in one cell, and it is refer to somatic cell, which is body cell.
transformation: means insertion of non-native chromosome in a bacterial cell. Creating recombinant DNA molecule with plasmid vectors. For example, human genetic is cut with E.coli to produce a mixture of E.coli restriction fragment. Thus, E.coli cells transformed with recombinant plasmids.
Transgenic: individual that carrying a transgene. Transgene means animals or plants engineered with genes from other species.
Heterozygous: a genotype in which the two copies of the gene that determine a particular trait are different alleles. Check out hybrid for similar explanation.
sex-linked disorders: that means the genetics disorder is not in autosome, it is depended by the sex-chromosome: the disorder either is depends on X or Y.
polygenic: means trait controlled by multiple genes.
I hope it helps, because it is from my university course book.... so enjoy!!!
