Describe mechanisms by which new genes could arise.

Exon shuffling.

Explanation:

Exon shuffling may be defined as the phenomena of in which genes are exchanged between the different exons. Types of exon shuffling are transposon shuffling and cross over at the time of gamete formation.

Exon shuffling is responsible for the formation of new genes. Different exons combine together to form the new genes. The duplication of exons also leads to the formation of new genes. The intron-exons structure is altered for the new gene formation.

Thus, the correct answer is exon shuffling.

the transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics to measure nanometer distances and in photosynthesis. but an open question in this area is what effect, if any, the surrounding photonic environment has on this nanoscale energy transfer. by designing and performing a carefully controlled experiment to answer this question, scientists have settled the debate and found clues to improving the efficiency of many of the technologies that rely on this process.

explanation: