INTRODUCTION TO QUANTITATIVE GENETICS Part - 2

PART- II ROLE OF THE ENVIRONMENT IN PLANT BREEDING Environment affects selection and progress from selection. The genetic gain or response to selection is the difference between the mean phenotypic value of selected offspring from parental population and that of the parental population before selection. Response to selection is used to compare selection methods and to predict environment...

INTRODUCTION TO QUANTITATIVE GENETICS Part - 1

PART- I In the body of any organism there are two types of characters i.e. qualitative and quantitative .The characters which are governed by one or few genes are called oligogenic or qualitative character and those which are governed by numerous genes are called polygenic or quantitative characte...

Effect of chemical mutagens

Effect of chemical mutagens Chemical mutagens affect the organisms at molecular level. Action of chemical mutagens may or may not give beneficial result. It can change the sequence of nucleotides or may replace the nitrogenous bases in DNA. On the basis of effect of chemical mutagens (at molecular level), it is classified into following categories. We have to understand the molecular basis of...

WEAOPNS OF GENETICS, DNA-THE GENETIC MATERIAL

WEAOPNS OF GENETICS, DNA-THE GENETIC MATERIAL M.K.Bhelloria                                                                                                                                                       Throat...