Each excavation job as in any other case, must be evaluated as to the facts relating to the needs of a competent person, and qualified person. The professional judgement of OSHA must come into play by using our construction regulations where they apply.
Definition: A diploid cell is a cell that contains two sets of chromosomes. One set of chromosomes is donated from each parent. Examples: The diploid number of a cell is the number of chromosomes in the cell. This number is commonly abbreviated as 2n, where n stands for the number of chromosomes. For humans this equation would be 2n=46. Humans have 2 sets of 23 chromosomes for a total of 46 chromosomes:
The gametic or haploid number (n) is the number of chromosomes in a gamete. Two gametes form a diploid zygote with twice this number (2 n, the zygotic or diploid number) i.e. two copies of autosomal chromosomes.For humans, a diploid species, n = 23.he somatic cells are hexaploid, with six sets of chromosomes, 2 n = 6 x = 42. The gametes are haploid for their own species, but triploid, with three sets of chromosomes, by comparison to a probable evolutionary ancestor, einkorn wheat. The monoploid number x = 7, and the haploid number n = 21.