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  • Deciphering the Language of Sex

    Deciphering the Language of Sex

    Lecture

    (58 min 51 sec) Is it a boy or a girl? Dr. David Page looks at how we define male and female and summarizes the development of human sex characteristics.

  • Sperm Motility

    Sperm Motility

    Clip

    (21 sec) Video microscopy of sperm motility in an average human male and an infertile male.

  • Intracytoplasmic Sperm Injection (ICSI)

    Intracytoplasmic Sperm Injection (ICSI)

    Clip

    (1 min 16 sec) Video microscopy demonstrating how sperm from an infertile male can be injected into a female egg.

  • From Fertilization to Egg Laying in C. elegans

    From Fertilization to Egg Laying in C. elegans

    Clip

    (1 min 12 sec) Video of the fertilization of the C. elegans oocyte, the fusion of the egg and sperm nuclei, and the egg laying.

  • Embryonic Cell Division in C. elegans

    Embryonic Cell Division in C. elegans

    Clip

    (1 min 31 sec) Time-lapse microscopy showing cell division from 1 to 2 to 4 cell stages in C. elegans with fluorescent chromosomes.

  • Dosage Compensation in C. elegans

    Dosage Compensation in C. elegans

    Clip

    (3 min 49 sec) A demonstration by Dr. Barbara Meyer of how a branched genetic pathway can be affected by mutations in different parts of the pathway.