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Unformatted text preview: that encodes a functional pigment • c is an allele that does not encode functional pigment EACH HAS INDIV GENOTYPE Maize variegation
• Ds elements can transpose
using the Ac transposase.
• Ds elements can insert into
C alleles disrupting gene
• Kernels with the Ctc
genotype are yellow
REVERTIBLE: CAN BE UNMUTATED BY TRANSPOSON MOVING BACK OUT. Activator (Ac) and Dissociation (Ds)
elements control maize variegation
• If the Ds element is
excised, the C allele
• This happens in
some, but not all,
development Figure 11.27 Activator (Ac) and Dissociation (Ds)
elements control maize variegation • Creates a purple
spot or streak in an
IN KERNAL • Variegation is
evidence of TE
Figure 11.27 Sleeping Beauty Question 3 • Sleeping beauty was isolated from an inactive DNA transposon in
ﬁsh. What might have made it inactive? • ANSWER: It had accumulated mutations, similar to Ds. Sleeping Beauty Q...
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This document was uploaded on 02/25/2014.
- Fall '14