Question

Match the following:
$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{A. Chromosomal theory of inheritance}& \text{I. Correns}\\ \text{B. Rediscovery of Mendel's work}& \text{II. Sturtevant}\\ \text{C. Gene mapping}& \text{III. Sutton}\\ \text{D. Linkage}& \text{IV. Morgan}\end{array}$

• A. A-II, B-I, C-III, D-IV
• B. A-III, B-II, C-IV, D-I
• C. A-III, B-I, C-II, D-IV
• D. A-IV, B-III, C-II.D-I

Answer 1

The correct option is C A-III, B-I, C-II, D-IV

The chromosomal theory of inheritance was postulated by Sutton and Boveri. It states that chromosomes are the structures that bears the genes and their segregation during meiosis forms the basis of Mendelian inheritance.

In 1900, three scientists, Correns, Tschermak and Hugo de Vries independently rediscovered Mendel’s work and gave full credit to Mendel.

The physical association of genes on a chromosome is called linkage. The experimental verification for the same was done by T. H. Morgan.

Alfred Sturtevant, one of the students of Morgan, explored the position of genes on the chromosomes (gene mapping) by using recombination frequency. In his experiments, he observed that the higher the number of offspring with recombinant phenotypes, the higher was the distance between those two linked genes.