front 1 The main goal of meiosis is to | back 1 produce cells with one copy of each type of chromosome |
front 2 In mitosis, each parent cell produces ______ daughter cells, while in meiosis, _____ daughter cells are produced | back 2 2, 4 |
front 3 The head of the sperm is comprised of what three components? | back 3 acrosome nucleus flagellar basal body |
front 4 Infertility is defined as | back 4 the inability to fertilize an egg |
front 5 Name the term for the process of sperm production | back 5 spermatogenesis |
front 6 Human gametes (sperm and ova) are produced via the type of cell division called | back 6 meiosis |
front 7 The fluid expelled (ejaculated) during male orgasm is called ______ | back 7 semen |
front 8 List the events that occur during spermiogenesis | back 8 growth of flagellum loss of excess ctytoplasm |
front 9 A mature sperm cell is also known as a ______ | back 9 spermatozoon |
front 10 When somatic cells are diploid, gametes are ________; they have one copy of each type of chromosome | back 10 haploid |
front 11 Name the type of stem cell that produces cells which, in turn, enter meiosis | back 11 spermatogonium |
front 12 Following the process of _____, daughter cells are produced that are genetically distinct from each other | back 12 meiosis |
front 13 Meiosis I of spermatogenesis gives rise to two equal-size, haploid and genetically unique ______ spermatocytes | back 13 secondary |
front 14 During prophase I homologous chromosomes exchange segments of DNA in a process called ______ _______ | back 14 crossing over |
front 15 Describe the morphology of a mature spermatozoon | back 15 pear-shaped with a long tail |
front 16 The modified lysosome within the spermatozoon that contains enzymes needed to penetrate the egg is called the ______ | back 16 acrosome |
front 17 Mitochondria are located in the _____ of the sperm | back 17 midpiece |
front 18 A typical ejaculation results in the discharge of 2 to 5 mL of the fluid called ________ | back 18 semen |
front 19 In prophase I of meiosis, each pair of homologous chromosomes line up side by side and form a _______ | back 19 tetrad |
front 20 As part of the secretion of the prostate, the compound _____ breaks down seminogelin, liquifying the semen | back 20 serine protease (PSA) |
front 21 Two requirements must be met for sperm motility: ______, and an energy source (ATP) | back 21 elevated pH |
front 22 A healthy, post-pubescent, young man can produce about _____ sperm per day | back 22 400 million |
front 23 Each secondary spermatocytes undergo meiosis II, dividing into two | back 23 spermatids |
front 24 The earliest stem cells specifically destined to become spermatogonia are called | back 24 primordial germ cells |