It’s magnesium magnesium has 3 levels and carbon only has two levels
alleles of different genes tend to be connected together when does genes are on the same chromosome the Offspring received one recessive allele from each parents
Hope it helps
During metaphase 1, the spindle fibers attach to the centromeres of each chromosome. Both kinetochores of each sister chromatid pair are turned toward the same pole. And 2 members of each chromosome pair (sister chromatids) are pulled into each new cell during anaphase 1.
I think the answer you want is they are called chromatids.