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. copies of transposable elements can appear on multiple chromosomes.
c. their replication is controlled by genes found on the transposable element itself.
d. all of these choices are correct.

All of these choices are correct.

Explanation:

Transposable elements or jumping genes has the ability to move from one site to another in the genome of an organism. The C value paradox indicates that the complexity of an organism doe not depend on the amount of the haploid content of DNA.

Transposable elements also correspond to the C value paradox. Their complexity can not be contributed by their amount of DNA. Their copy number can present on multiple chromosomes and their replication is controlled by the gene present on transposable element. The copy number of transposable element can increase in the next generation by copy and paste mechanism.

Thus, the correct answer is option (d).

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

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