Question

Which of the following statements is FALSE?

Nonautonomous DNA transposons are transposons that have mutations in their terminal inverted repeats.
	Inactivation of a gene by the insertion of an autonomous DNA transposon is an unstable mutation; the gene can be reactivated by transposition of the element.
	piRNA is used to block the movement of transposable elements.
	Transposable elements can contain genes other than those needed for transposition and still retain the ability to transpose.

Answer 1

Option b is false which says Inactivation of gene by insertion of autonomous DNA transposons ID an unstable mutation. , the gene can be reactivation of transposition of the element .

It is not an unstable mutation. As unstable mutation won't stay for long there thus transposition will be temporary

Also the last two options are correct as these contain the genes other than gene that encodes the transposable enzyme and non autonomous can have ORF that encodes for proteins which is required for retrotranspostion