Part A How was it established that particular phenotypes are inherited as a resu
ID: 165721 • Letter: P
Question
Part A How was it established that particular phenotypes are inherited as a result of genetic information present in the chloroplast rather than in the nucleus? The organelle heredity is detected when the maternal parent has more influence than the paternal parent over the phenotype of the offspring. In addition, assuming other factors such as X-linked inheritance can be eliminated, different results from backcrosses support inheritance by extranuclear elements. The organelle heredity is detected when the paternal parent has more influence than the maternal parent over the phenotype of the offspring. In addition, assuming other factors such as X-linked inheritance can be eliminated, different results from backcrosses support inheritance by extranuclear elements. The organelle heredity is detected when the maternal parent has more influence than the paternal parent over the phenotype of the offspring. In addition, assuming other factors such as X-linked inheritance can be eliminated, different results from reciprocal crosses support inheritance by extranuclear elements. The organelle heredity is detected when the paternal parent has more influence than the maternal parent over the phenotype of the offspring. In addition, assuming other factors such as X-linked inheritance can be eliminated, different results from reciprocal crosses support inheritance by extranuclear elements. Part B How did the discovery of three categories of petite mutations in yeast lead researchers to postulate extranuclear inheritance of colony size?Explanation / Answer
1. option 3
genetic information usually transmitted from one offspring to another through the cytoplasm rather than in the nucleus. And it is mostly due to the three factors, one of them is the genetic material in organelles like in chloroplast or mitochondria helps in determination of the certain phenotypic characteristics of the offspring. Also, the genetic material of nucleus is automatically stored within egg nucleus and then through transmission, it transmitted from ooplasm to the offspring.It may further influence the development of the embryo and its phenotypic characteristics.
Transmission of genetic traits which contained as a genetic material within cytoplasmic organelles like chloroplasts and mitochondria is known as extranuclear inheritance.