Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
In Morgan's experiment on Drosophila, he found that the strength of linkage between the genes y and w was
BiologyPrinciples of Inheritance and VariationNEET
Options:
  • A higher than that of the genes w and m
  • B lower than that of the genes w and m
  • C same as that of the genes w and m
  • D could not be predicted with reference to w and m
Solution:
1520 Upvotes Verified Answer
The correct answer is: higher than that of the genes w and m
T. H. Morgan proposed the chromosomal theory of linkage, he experimented on Drosophila melanogaster (Fruitfly). In Cross A he took 2 genes y and w which are about 1.3 map unit distant from each other so he obtained 98.7% parental characters (due to higher linkage) and 1.3% recombinant characters.

In Cross B, he took 2 genes w and m genee which are about 37.2 map unit distant from each other, so he obtained 62.8% parental characters (due to comparatively lesser linkage) and 37.2% recombinant characters.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.