Transposition requires rolling circle replication is the process by which proteins are transposed within cells packages new genes into virions may result in the inactivation of chromosomal genes at the insertion site is a form of homologous recombination

may result in the inactivation of chromosomal genes at the insertion site may result in the inactivation of chromosomal genes at the insertion site

Explanation:

A transposon is a sequence of the DNA which can change its position on the chromosomes and can insert wherever it wants.

This process of changing the position by the transposons or jumping genes was examined by Barbara Mcclintock and referred this as transposition.

When the DNA is integrated into the DNA, it inactivates the genes at the insertional site and disrupts the function of the gene.

Thus, the selected option is correct.

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

i'd say that the moon rock is about 2.2 billion years old.