In this article we will discuss about the asexual and sexual modes of reproduction in animals with the help of suitable diagram. Asexual Reproduction in Animals: Asexual reproduction is that kind of reproduction which has the involvement of only one parent. In this there is neither gamete formation nor fusion of gametes. When the organism reproduces asexually, the offspring formed [...]
In this article we will discuss about:- 1. Selection of Cases and Controls 2. Comparability of Cases and Controls 3. Obtaining Information about Factor of Interest 4. Analysis of Case-Control Study. 1. Selection of Cases and Controls: In addition to being clear and concise, the criteria required to be a case should be highly specific in order to exclude false-positive [...]
In this article we will discuss about:- 1. Selection of Exposed and Unexposed Groups 2. Follow-Up Period in Cohort Disease 3. Determining Occurrence of Disease 4. Analysis. 1. Selection of Exposed and Unexposed Groups: In most cohort studies, special exposure groups are purposively selected for comparison. This could include comparing rates of disease(s) in different breeds; comparing rates of pneumonia [...]