Which of the following properties of transposable elements allows them to contribute to the c-value paradox? a. their copy number can increase from one generation to the next. b. their replication is controlled by genes found on the transposable element itself. c. copies of transposable elements can appear on multiple chromosomes. d. all of these choices are correct.

All of these choices are correct.

Explanation:

Transposons are the DNA sequences that can move from one location to another in the genome. The transposon genes are also known as jumping genes.

The C value paradox of the transposable elements depends on the different factors. The transposons can increase their number by copy and paste mechanism. The genes can be controlled by the enzyme transposase and their copies may exist at the different site of the chromosome.

Thus, the correct answer is option (D).