Chapter 8 Outline 10Th Grade Essay Research free essay sample

Paper Biology Chapter 8 Outline 8:1 Ten Chromosome: one of the chromosomes that determine a sex ; sex chromosomes Y Chromosome: one of the chromosomes that determine sex, Sexual activity chromosome Sexual activity chromosomes: because the two chromosomes differ between the sexes, we call them sex chromosomes. Autosomes: chromosomes non related to an being # 8217 ; s sex. 8:2 Sex-linked feature: trait whose cistrons are carried on the X chromosome. 8.4 Nondisjunction: failure of homologs to segregate during miosis. Chromosome theory of heredity: the theory that cistrons are located on chromosomes. 8:5 Gene linkage: the cistrons that occur on the same chromosome ( linked ) 8:6 Crossing-over: exchange of sections of chromosomal stuff between two strands of a four ; occurs during prophase of miosis. Recombination gametes: gametes with a set of linked cistrons different than that found in the parent. Familial map: the location of cistrons on a chromosome. 8:7 Continuous fluctuation: the presence of many multiple length progeny. Multiple cistrons: three or more different allelomorphs commanding a trait. We will write a custom essay sample on Chapter 8 Outline 10Th Grade Essay Research or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page 8:8 Modifier cistrons: cistrons that affect the look of other allelomorphs. Familial guidance: type of guidance in which parents can be advised of their opportunities of holding offspring with a familial disease. 8:9 Deadly cistron: an allelomorph that causes decease. 8:11 Ultrasonography: a technique used to find the place and anatomy of a foetus. Fetoscopy: allows direct observation of the foetus and environing tissues. Endoscope: device that allows a foetus to be viewed while it is still in the womb.