Sindhi Notes
.حرف جر:
جر معنى “كشش يا ڇك”. אهڑא لفظ جيكي جملي ۾ אسم يا ضمير جي پٺيان كم אچن. אن جو
تعلق جملي جي پوئين אسم يا ضمير سان ڏيکاريندא آهن
.مثال: جو، جا، جون، سان، جي، کي، ۾ وغيره.
Botany Notes
The search for Genetic material started during the mid-nineteenth century. The principle of inheritance was discovered by Mendel. Based on his investigation, Mendel concluded that some ‘factors’ are transferred from one generation to another. Mendel’s Law of Inheritance was the basis for the researchers on genetic material. Keeping his conclusions in mind, scientists who came after him, focused on chromosomes in search of genetic material. Even though the chromosomal components were identified, the material which is responsible for inheritance remained unanswered. It took a long time for the acceptance of DNA as the genetic transformation. Let’s go through a brief account of the discovery of genetic material and Griffith experiment. DNA As Genetic Material - Hershey And Chase Experiment Even though researchers discovered that the factor responsible for the inheritance of traits comes from within the organisms; they failed to identify the hereditary material. The chromosomal ...
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