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Explain linkage and recombination as put …

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Explain linkage and recombination as put forth by t-h morgan based on his observation with drosofila milanogaster crossing experiment.
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Meghna Thapar 5 years, 8 months ago

Linkage helps to keep certain genes together in the same chromosome whereas, process of recombination mix genes between chromosomes. Linkage is a phenomenon that can be seen in any type of cell. However, recombination is a process that occurs during meiosis I. The conclusions drawn by T.H. Morgan from the crossing experiment in Drosophila with respect to linkage were-

1) The gene responsible for eye colour is located on X chromosome.

2) The alleles responsible for eye colour are present on X chromosome. 

3) There are two X chromosomes in females. Both X chromosomes carry an allele of the trait. 

4) Females can be homozygous or heterozygous for the alleles.

 

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