Mendel's Law of Segregation states that allele pairs separate during gamete formation, and each gamete carries only one allele for each gene. Therefore, the correct response regarding Mendel's Law of Segregation is:
C: alleles belonging to the same gene will never end up in the same gamete during meiosis.
This is because, during meiosis, each gamete receives only one allele of each gene from the homologous chromosomes that segregate from one another.
Option D describes the Law of Independent Assortment, which is a separate principle by Mendel related to genes located on different chromosomes.