Explain linkage on the basis of chromosomal theory of inheritace. (Linkage and crossing over of genes are alternative of each others. Justify this statement with a suitable example)

Linkage and crossing-over of genes are alternatives of each other. Justify with the help of an example.

Compare in any three ways the chromosomal theory of inheritance as proposed by Sutton and Boveri with that of experimental results on pea plant presented by Mendel. OR (a) Explain linkage and recombination as put forth by T.H. Morgan based on his observations with Drosophila melanogaster crossing experiment. (b) Write the basis on which Alfred Sturtevant explained gene mapping.

The theory of recombinaiton of linked gene due to the crossing over of chromosome during zygotene of meiosis put forwarded by

Explain the terms substitution and addition reactions ? Methane gives substitution reaction while ethylene gives addition reaction. Justify the statement giving two examples in each case.

The exhange of one part of a chromosome to the other part of some or another chromosome is called Or The movement of gene from one linkage group to another is called

(a) How are Mendelian inheritance, polygenic inheritance arid pleiotropy different from each other ? (b) Explain polygenic inheritance pattern with the help of a suitable example.

Orthophosphoric acid (H_(3)PO_(4)) is not a reducing agent wheres hypophosphorus acid (H_(3)PO_(2)) is a strong reducing agent "Explain and justify the above statement with the help of a suitable example.

'Orthophosphoric acid (H_(3)PO_(4)) is non-reducing whereas hypophosphorus acid (H_(3)PO_(2)) is a strong reducing agent. ''Explain and justify the above statement with suitable example.