Homologous chromosomes separate but sister chromatids remain joined at their centromeres. Meiosis results in genetic variation among its product cells. ... -Genetic material is exchanged between homologous chromosomes in meiosis during crossing over.
Answer:
Option a (Hit)
Explanation:
A research paper published in 1984 demonstrated that when we see similar results in our experiments of DNA bands we often observe hit classical theory.
Reference: Haynes, R. H., F. Eckardt, and B. A. Kunz. "The DNA damage-repair hypothesis in radiation biology: comparison with classical hit theory." The British journal of cancer. Supplement 6 (1984): 81.
D, how hard the students try on the SAT seems the most reasonable.