Because they're symmetrical, they easily invert during meiosis.
Comprised of repeating motifs, they range from a few hundred to several thousand base pairs in length. Because they're symmetrical, they easily invert during meiosis. For 10 points—identify these segments of "junk" DNA or "switching genes" which, like transposons, were discovered by Barbara McClintock.
Comprised of repeating motifs, they range from a few hundred to several thousand base pairs in length.
{intron}s