biology test questions essays

biology test questions essays attached at the centriole. "a pair of chromosomes, one from the mother and one from the father." attached at their centromeres. identical until crossing over occurs. both 3 and 4 are correct "Different, or alternative, forms of the same gene are called" "If a diploid organism has a genome consisting of 4(four) chromosomes, it can produce ____different combinations of maternal and paternal chromosomes in the offspring (disregarding crossing over)." Is the common form of reproduction in higher organisms. Requires only one parent. Produces a wide variety of offspring. "During crossing over, ___undergo breakage and exchange segments" Non sister chromatids of a homologous pair Nonhomologous chromatids ...