Linked gene shows :-

Options

A. Always parental combination
B. Sometimes new combinations
C. Always new combination
D. New combination more

Answer

**Step-by-Step Solution:**

1. **Understanding Linked Genes**: Linked genes are genes that are located close to each other on the same chromosome. Because of their proximity, they tend to be inherited together during the process of meiosis, which is the type of cell division that produces gametes (sperm and eggs).

2. **Parental Combinations**: When linked genes are inherited together, they typically produce offspring that exhibit the parental combinations of traits. This means that the offspring will display the same traits as the parents for those linked genes.

3. **Recombination and Crossing Over**: Recombination occurs during meiosis, specifically during a process called crossing over. This is when homologous chromosomes exchange segments of genetic material. However, linked genes do not undergo recombination as frequently as unlinked genes.

4. **Complete Linkage**: In cases of complete linkage, the genes are so close together that they are almost always inherited together, leading to the parental combinations being predominant. However, complete linkage is rare.

5. **Formation of New Combinations**: Although linked genes primarily show parental combinations, there are instances where they may separate during meiosis, leading to the formation of new combinations of traits. This happens due to the occasional crossing over that can occur between the linked genes.

6. **Conclusion**: Therefore, linked genes show "sometimes new combinations" because while they predominantly exhibit parental combinations, there are occasions where new combinations can arise due to crossing over.

**Final Answer**: Linked genes show "sometimes new combinations."

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