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 failure of pollen formation results in male sterile plants. In some crop plants male sterile mutants occur in which inheritance of male sterility follows one of the following two patterns: those in which the trait is inherited through a single recessive chromosomal gene segregating in Mendelian ratios; secondly, those that show maternal transmission. Rhoades in 1933 described maternal inheritance [...]
The below mentioned article provides notes on colchicine. In 1937 O.G. Eigsti first succeeded in inducing tetraploidy in cells of onion root tips by the chemical colchicine. This is an alkaloid obtained from the seed and corm of liliaceous plant Colchicum autumnale. In high concentrations the drug is highly toxic to cells. If used in concentrations as low as 0.01% [...]