Transposons are

• house-keeping genes

• jumping genes

• transporting genes

• stationary genes

B.

jumping genes

Transposons are sequences of DNA that can move around to different positions within the genome of a single cell, a process called transposition. They are also known as jumping genes and can cause mutations. They were discovered by Barbara McClintock, for which she was awarded a Nobel prize in 1983.

Housekeeping genes are constitutive genes that are required for maintenance of basic cellular function and are expressed in all cells of an organism under normal and patho- physiological conditions.