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While studying the concept of linkage , ...

While studying the concept of linkage , Morgan came to the conclusion that

A

The genes were not located on the X chromosome .

B

The genes did not segregate independently .

C

The proportion of parental gene combinations is lesser than the non parental type .

D

The genes were not linked to one another .

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To solve the question regarding Morgan's conclusions about linkage, we can break down the information step by step: ### Step-by-Step Solution: 1. **Understanding Linkage**: Linkage refers to the tendency of genes that are located close to each other on a chromosome to be inherited together. This concept was studied by T.H. Morgan using Drosophila (fruit flies). 2. **Morgan's Experiments**: Morgan conducted experiments on Drosophila to observe the inheritance patterns of traits, particularly focusing on traits such as eye color, which is linked to the X chromosome. 3. **Gene Segregation**: One of the key observations Morgan made was that genes located on the same chromosome do not segregate independently during meiosis. This means that the inheritance of one gene can affect the inheritance of another gene that is located nearby. 4. **Evaluating the Options**: - **Option A**: "The genes are not located on X chromosomes." - This is incorrect because Morgan found that some genes, including those for eye color, are located on the X chromosome. - **Option B**: "The genes did not segregate independently." - This is correct, as it aligns with Morgan's findings on linkage. - **Option C**: "The proportion of parental gene combination is lesser than the non-parental type." - This is misleading; in linked genes, the parental combinations are usually more frequent than non-parental combinations. - **Option D**: "The genes were not linked to one another." - This is incorrect as Morgan's work demonstrated that genes can be linked. 5. **Conclusion**: Based on Morgan's findings, the correct conclusion is that **the genes did not segregate independently**. ### Final Answer: **Option B: The genes did not segregate independently.** ---
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