Sexual Reproduction Draw and label the stages of meiosis Complete the table comparising mitosis and meiosis MItosis Meiosis Genetic recombination Number of cells produced Genetically identical cells produced? Number of chromosomes Reduction division? How are meiosis II and mitosis similar? Define crossing over How does non-disjunction occur? Suggest a reason that aneuploidy is not picked up by a checkpoint? Describe how Downs Syndrome can occur How can triploidy (3n) occur? How is triploidy different from trisomy? Polyploidy in human zygotes cause the zygote to NOT survive. This is not the case in plants and some insects. What is a disadvantage of polyploidy in plants? Compare the advantages and disadvantages of asexual and sexual reproduction strategies. What are the names of the gametes in humans and flowering plants? Does pollination always lead to fertilisation? What is a hermaphrodite and how do they reproduce? The diploid number of chromosomes in horses is 64. How many chromosomes would you expect in a horse’s a) fertlised egg b) sperm cell c)somatic cell?