Howard Hughes Medical Institute
Hhmi: Bio Interactive: How Tumors Grow
A look inside the birth and life of a tumor. See how the growth begins, and how blood vessels form to support the tumor. [1:12]
Howard Hughes Medical Institute
Hhmi: Bio Interactive: Dna Gene Chip Explanation
Observe a scientist describe the process used to extract DNA from a cell and to analyze it on a gene chip. [1:41]
Howard Hughes Medical Institute
Hhmi: Bio Interactive: Natural Selection Adaptation
Classroom resources paired with a ten-minute video highlight the groundbreaking research of physical and genetic evolutionary changes in rock pocket mouse populations. [10:31]
Howard Hughes Medical Institute
Hhmi: Bio Interactive: Bacterial Quorum Sensing
An explanation of how Vibrio harveyi, a marine bacteria, functions as a signaling molecule that turns on genes that produce bioluminescence.
Howard Hughes Medical Institute
Hhmi: Bio Interactive: Retroviruses and Viral Diversity
A concise summary of the main differences between retroviruses and those which use DNA in their genome. A few examples of each type of virus are shown.
Howard Hughes Medical Institute
Hhmi: Bio Interactive: The Guardian of the Genome
Discover the role the p53 gene plays in preventing cancer. A brief presentation of the three genes related to cancer is followed by a more indepth look at the p53 gene and its role in preventing cancer.