When DNA was synthesized using nucleotides marked with 100% 15N isotope, the entire double strand of DNA contained nitrogen with 15N. When this DNA was cultured with a supply of nucleotides composed of nitrogen that was 100% 14N, as the DNA underwent replication, the daughter DNA was composed of 50% 14N and 50% 15N. What happened next when replication of the 50-50 daughter DNA was cultured with a supply of 100% 14N nucleotides, in terms of the composition of the next generation of DNA? Choose all that apply.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.