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5 Written questions

5 Matching questions

  1. Primary Oocyte
  2. Fertilization Membrane
  3. Telophase II
  4. Meiosis II
  5. Synapsis
  1. a - nuclear membrane forms around each new haploid nucleus
    - two daughter cells are formed after cytokinesis
    - by completion of meiosis II, four haploid daughter cells are produced per gametocyte
  2. b - similar to mitosis
    - not preceded by chromosomal replication
  3. c - hard layer that surrounds the ovum cell membrane
    - prevents multiple fertilizations
  4. d homologous chromosomes come together and intertwine
  5. e - 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

5 Multiple choice questions

  1. - male: testes
    - female: ovaries
  2. - production of female gametes
    - occurs in the ovarian follicles
    - one primary oocyte completes meiosis I per month after menarche
    - yields two secondary oocyte and a polar body
    - secondary oocyte is expelled from the follicle during ovulation
    - meiosis II doesn't occur till fertilization
  3. - development of an unfertilized egg into an adult organism
    - occurs naturally in certain lower organisms (bees and ants, some salamander)
    - eggs of some organisms can be induced to develop parthenogenetically (not done naturally)
    - since the organism develops from a haploid cell, all of its cells will be haploid
  4. SEVEN UP:
    Seminiferous tubules
    Vas deferens
    Ejaculatory duct
  5. - mitosis: division and distribution of the cell's DNA to its two daughter cells such that each cell receives a complete copy of the original genome
    - cytokinesis: division of cytoplasm that follows
    - happens on somatic cells only
    - 2N --> 2N (ends up with two diploid cells)

5 True/False questions

  1. Ovulation and Menopause- women ovulate about once every four weeks
    - menapause occurs between age 45 and 50
    - during menopause, ovaries become less sensitive to the hormones that stimulate follicle development (FSH and LH), and eventually they atrophy
    - remaining follicles disappear, estrogen and progesterone levels greatly decline and ovulation stops


  2. Anaphase I- sister chromatids are pulled to opposite poles by the spindle fibers


  3. Epididymuswhere sperm acquire motility and stored here till ejaculation


  4. The Cell Cycle- spindle apparatus disappears
    - new nuclear membrane forms around each set of chromosomes
    - nucleoli reappears
    - chromosomes uncoil
    - cytokinesis occurs


  5. Acrosome- 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


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