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5 Written Questions

5 Matching Questions

  1. Follicles
  2. Telophase
  3. Corona Radiata
  4. Pathway of Sperm
  5. Chromatin
  1. a - spindle apparatus disappears
    - new nuclear membrane forms around each set of chromosomes
    - nucleoli reappears
    - chromosomes uncoil
    - cytokinesis occurs
  2. b - outer layer of the oocyte cell membrane
  3. c SEVEN UP:
    Seminiferous tubules
    Vas deferens
    Ejaculatory duct
  4. d - granular DNA during interphase
  5. e - multilayered sac of cells that contains, nourishes and protects and immature ovum
    - follicle cells produce estrogen

5 Multiple Choice Questions

  1. - cell continues to grow in size
    - assembly of new organelles and other cell structures continues
  2. - result when a single zygote splits into two embryos
    - if splitting occurs at the two-cell stage of development, embryos will have separate chorions and separate placentas
    - if it occurs at blastula stage, embryos only have one chorionic sac and share a placenta (and probably amnion)
  3. - 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
  4. - 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
  5. where sperm acquire motility and stored here till ejaculation

5 True/False Questions

  1. Tetrad- male: testes
    - female: ovaries


  2. M Stage (Mitosis)- each chromosome is replicated so that during division, a complete copy can be distributed to each daughter cell
    - two identical sister chromatids held together at a region called the "centromere"
    - telomeres: ends of the chromosomes
    - 2 x 2N number of chromosomes


  3. Menarche- chromosomes align


  4. Cytokinesis- happens at the end of telophase
    - cytoplasm divides into two daughter cells
    - in animal cells, a cleavage furrow forms, cell membrane indents along the equator of the cell and cell split


  5. Binary Fission- prokaryotes' way of of cell division
    - a type of asexual reproduction
    - splits into two equal halves, each daughter cell receives a complete copy of the original chromosome


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