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QUESTION 13 Which combination of processes demonstrates spermatogenesis? Where process occurs ® four functional haploid gametes one functional gamete with 2-3 polar bodies
QUESTION 5 (6 marks) Meiosis ensures that a wide range of genetic combinations occurs during the formation of gametes. The diagrams show two processes that occur during meiosis. Process 1 Duplicated homologous chromosomes Process 2 Duplicated chromosomes . Membrane / . Describe the two processes shown in the diagrams and how they contribute to genetic variation in gametes. Name and description of process I: Name and description of process 2:
QUESTION 14 Prior to fertilisation a secondary oocyte will arrest at which stage of meiosis? (A) prophase I (B) prophase II (C) metaphase I (D) metaphase 11
QUESTION 13 During meiosis II what is the role of homologous chromosomes? (A) pairing (B) separation (C) duplication (D) recombination
QUESTION 27 (3 marks) Clownfish have 24 pairs of chromosomes and reproduce via external fertilisation with gametes initially created through meiosis. Females lay up to 1500 eggs and then males swim over the eggs and fertilise them. Explain how the processes of independent assortment and random fertilisation create variation in the genotypes of clownfish offspring.
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