In this article we will discuss about the dizygotic twins and monozygotic twins. Twins can be either dizygotic (fraternal) or monozygotic (identical). Dizygotic twins are the result of two different ova fertilized by two different sperm. Monozygotic twins are the result of one ovum fertilized by one sperm that divides to form two embryos. In the past, the only way [...]
In this article we will discuss about some common misconceptions and misinterpretations about genetic disorders. It is important to recognize that there are many potential misconceptions concerning genetic disorders and risks that need to be identified and rectified to ensure that families understand the information they are given and can use it appropriately. Some common misconceptions and misinterpretations are as [...]
In this article we will discuss about the development of tumour suppressor genes. Inactivation of tumour suppressor genes also contributes to development of tumours. Normally, tumour suppressor genes act to inhibit cell proliferation and tumour development. When these genes are inactivated or lost they lead to abnormal proliferation of tumour cells. The first tumour suppressor gene was identified through studies [...]