In What Way Do Segregational Petite Mutations Differ from Neutral

Question

In what way do segregational petite mutations differ from neutral petites? A)Segregational petites follow Mendelian inheritance as a result of the influence of nuclear genes; neutral petites,when crossed to wild type,produce only wild- type,normal- sized colonies. B)When a neutral petite is crossed to a segregational petite,all offspring are neutral petites. C)Neutral petites follow Mendelian inheritance as a result of the influence of nuclear genes; segregational petites,when crossed to wild type,produce only wild- type,normal- sized colonies. D)When a segregational petite is crossed to a wild- type cell,all offspring are petite.However,when a neutral petite is crossed to a wild- type cell,all offspring are wild type. E)Neutral petites are dominant and segregational petites are recessive mitochondrial genes.

Accepted Answer

Segregational petites are influenced by nuclear genes and exhibit Mendelian inheritance patterns, whereas neutral petites result from mitochondrial mutations and do not follow Mendelian inheritance. When neutral petites are crossed with wild type, the offspring are all wild type, indicating the mitochondrial defect does not get passed on in a Mendelian fashion.