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5 Written questions

5 Matching questions

  1. Gonads
  2. Male Reproductive Anatomy
  3. Prophase I
  4. Sexual Reproduction
  5. Acrosome
  1. a - male: testes
    - female: ovaries
  2. b - cap-like structure, over the anterior half of mature sperm's head
    - derived from Golgi apparatus
    - contains enzymes to penetrate the tough outer covering of the ovum
    - once in contact with ovum cell membrane, sperm forms a tubelike structure called the acrosomal process
    - acrosomal process extends and fuses with ovum and enters the ovum's cytoplasm
  3. c - homologous chromosomes come together and intertwine
    - at this stage, chromosome consists of two sister chromatids
    - where recombination and crossing over happens, responsible for increased genetic diversity
  4. d - testes contain two functional components: seminiferous tubules and interstitial cells (cells of Leydig)
    - sperm are produced in seminiferous tubules, nourished by Sertoli cells
    - interstitial cells secrete testosterone and anderogens
    - testes have to be 2-4°C lower than body temperature
  5. e - fusion of two gametes (specialized sex cells produced by each parent)
    - meiosis is the process where the sex cells are produced
    - mitosis preserves the diploid chromosome number while meiosis halves it
    - somatic cells undergo mitosis, gametocytes undergo meiosis
    - during fertilization, two haploid gametes fuse, restoring the diploid number

5 Multiple choice questions

  1. - site of fetal development
  2. - multilayered sac of cells that contains, nourishes and protects and immature ovum
    - follicle cells produce estrogen
  3. chromosomes that code for the same trait, one inherited from each parent
  4. - essentially genetic carbon copies of parent cells
    - identical to parent cells except for random mutations
    - different types: binary fission, budding, regeneration, parthenogenesis
  5. - only occurs in the sex cells
    - meiosis I produces two intermediate daughter cells
    - meiosis II is similar to mitosis, it separates sister chromatids and results in four genetically distinct haploid gametes

5 True/False questions

  1. Primary Oocyte- immature ova
    - diploid cells that form by mitosis in the ovary
    - at birth, all of the primary oocyte that a female will produce during her lifetime are already in her ovaries


  2. Seminal Fluidhomologous chromosomes come together and intertwine


  3. Binary Fission- a process where a cell doubles its organelles and cytoplasm, replicates its DNA and then divides in two
    - unicellular organism: reproduction
    - multicellular organism: growth, development & replace old cells


  4. Somatic Cells- multilayered sac of cells that contains, nourishes and protects and immature ovum
    - follicle cells produce estrogen


  5. Prophase II- centrioles migrate to opposite poles
    - spindle apparatus forms