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When two different genes came from same ...

When two different genes came from same parent they tend to remain together.
Draw the cross with suitable example.

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William Bateson and Reginald C. Punnet crossed one homozygous strain of sweet peas having purple flowers and long pollen grains with another homozygous strain having red flowers and round pollen gralns. Results of Test Cross showed that a greater number of `F_(2)` plants had purple flowers and long pollen or red flowers and round pollen. So they concluded that genes for purple colour and long pollen grain and the genes for red colour and round pollen grain were found close together in the same homologous pair of chromosomes. This type of tendency of genes to stay together during separation of chromosomes is called Linkage.
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