What Are The Odds …?. Non-Fatal Injuries. Zipper: 1: 2,600 Toilet: 1: 6,500 Alarm Clock: 1: 350,000 Bed: 1: 400. Fatal Injuries 1. Snake Bite: 1: 36,000,000 Dog Bite: 1: 20,000,000. Fatal Injuries 2. Ebola: 1: 14,000,000 Appendicitis: 1: 700. Fatal Injuries 3.
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If the central dogma dictates that DNA is copied in its entirety, and mitosis ensures that each daughter cell gets the same information as the previous, why do organisms need to be different?
How Is Such Variety Possible If 99.9% of our Genes are identical?
In each diploid cell, there are pairs of homologous chromosomes containing the same number and type of genes but NOT necessarily coding for identical proteins
GAMETES are HAPLOID (only one set of chromosomes)Diploid v. Haploid
One diploid cell produces two diploid cells
Daughter cell is genetically identical to parent cell
Meiotic division only occurs in ovary or testes cells
Meiosis contains two sets of steps/divisions
One diploid cell produces four haploid cells
All resultant cells have half the genetic material as the original cellMitosis v. Meiosis