What does the narrator mean when he says that energy "is old as time itself" ?

Explanation:

Time has begun from the manifestation of creation .. But the unmanifested is beyond time ….

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.