Connecting Concepts

Classes of Transposable Elements

Now that we have examined the process of transposition, let us review the major classes of transposable elements (Table 11.6).

Transposable elements can be divided into two major classes on the basis of structure and movement. The first class consists of elements that possess terminal inverted repeats and transpose through DNA intermediates. They all generate flanking direct repeats at their points of

(b) Hybrid dysgenesis

There is no repressor in the egg cytoplasm.

Paternal chromosomes with P element

Maternal chromosomes without P elements

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