Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Ac/Ds transposable controlling elements
open-in-new
<p> Ac/Ds transposable controlling elements was the first <a href="/facts/Transposable_element/WbVMhuWR">transposable element</a> system recognized in <a href="/facts/Maize/lJ6c5xMH">maize</a>. The <i>Ac Activator</i> element is autonomous, whereas the <i>Ds Dissociation</i> element requires an <i>Activator</i> element to transpose. <i>Ac</i> was initially discovered as enabling a <i>Ds</i> element to break <a href="/facts/Chromosome/FRGf11FC">chromosomes</a>. Both <i>Ac</i> and <i>Ds</i> can also insert into genes, causing <a href="/facts/Mutation/Ee4NnWbY">mutants</a> that may revert to normal on excision of the element. The phenotypic consequence of <i>Ac</i>/<i>Ds</i> transposable element includes <a href="https://static-content.springer.com/image/prt%3A978-1-4020-6754-9%2F1/MediaObjects/978-1-4020-6754-9_1_Part_Fig1-76_HTML.jpg">mosaic colors in kernels and leaves in maize</a>. </p>