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Lessons from Apes: We have examined ape tool use and hunting behavior and seen that females are involved in tool use, that there may be evidence of cultural variation across chimp populations, and that many human behaviors are simply elaborations on hominoid behaviors.  Using lecture materials and the videos in the […]

Proteins known as cyclins (named because their concentration increases and decreases in a regular pattern through the cell cycle) and enzymes known as cyclin-dependent kinases (Cdks) are the key components in the regulatory events that occur at checkpoints. At the G1 to S checkpoint, two different G1 cyclin/Cdk complexes form, […]

Q1. About 5 percent of individuals with Down syndrome have a chromosomal translocation in which a third copy of chromosome 21 is attached to chromosome 14. If this translocation occurred in a parent’s gonad, how can it lead to Down syndrome in a child? Q2. During a physical exam a […]

Climate Change Response Some people you know say they don’t believe that the climate is changing. After this week’s readings, how would you respond? Write a 525- to 700-word response including: How scientists learn about past global temperatures and climates. The greenhouse effect. Greenhouse gases and their role in current climate […]