In this article we will discuss about the self-incompatibility in plants. Sometimes bisexual plants produce functional male and female gametes, yet self-pollination does not lead to fertilisation and there is no seed setting. The pollen grains may fail to germinate on the stigma; or, even if pollen tubes are formed their growth may be inhibited. Such a condition where pollen [...]
In this article we will discuss about:- 1. Introduction to Probability 2. Rules of Probability 3. Probability and Human Genetics 4. Binomial Expansions 5. Multinomial Distributions. Introduction to Probability: The numbers of individuals in each ratio result from chance segregation of genes during gamete formation, and their chance combinations to form zygotes. Since these are chance events, accurate predictions about [...]
The below mentioned article article provides notes on mendelian inheritance. In Mendel's dihybrid experiments the F1 double heterozygote always showed independent assortment of the two pairs of genes at the time of gamete formation. In fact the law was justified only because the two genes were not linked to each other. This was true because each gene was located on [...]