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The term “linkage” was coined by
G. Mendel
W. Sutton
T.H. Morgan
T. Boveri.
Solution
(c) : Linkage is the phenomenon ofcertain genes staying together during inheritance through generations without any change or separation due to their being present on the same chromosome. Linkage was first suggested by Sutton and Boveri $(1902-1903)$ when they propounded the famous “chromosomal theory of inheritance.” Bateson and Punnett $(1906)$ while working on sweet pea found that the factors for certain characters do not show independent assortment.However, it was Morgan $(1910)$ who clearly proved and defined linkage on the basis of his breeding experiments in fruit fly (Drosophila melanogaster).
Similar Questions
In a certain plant, red flowers $(R)$ are dominant to white flowers $(r)$ and tallness $(T)$ is dominant to dwarfness $(t)$. A heterozygous plant $(RrTt)$ is backcrossed with a double recessive plant $(rrtt)$. If the gene loci for colour and size and situated very close together on the same chromosome, the expected percentage of offsprings could be approximately
|
tall red |
tall white |
dwarf red |
dwarf white |
respectively
