Which of the following statements is not true of two genes that show 50% recombination frequency?
The genes are tightly linked.
The genes show independent assortment.
If the genes are present on the same chromosome, they undergo more than one crossing-over in every meiosis.
The genes may be on different chromosomes.
, tightly linked genes show very low recombination frequencies (e.g., 1.3% for yellow and white genes in Drosophila). A recombination frequency of 50% indicates that the genes are assorting independently, which occurs when they are either located on different chromosomes or are situated very far apart on the same chromosome. Therefore, the statement that they are tightly linked is incorrect , .
Join thousands of students and practice with AI-generated mock tests.