Introduction (list the three mechanisms that you have picked and provide a brief overview) Mechanism 1 (Describe the cellular source of the mechanism. Explain how this mechanism produces an effect inside the host. Provide an example pathogen that utilizes this mechanism). Mechanism 2 (Describe the cellular source of the mechanism. Explain how this mechanism produces […]
What is the chance (= probability) that any child will inherit the dominant allele if one parent (Parent #1) does not carry the allele and the other (Parent #2) is heterozygous for it? Provide a clear explanation and complete the Punnett Square below. Be sure to define the letters you use for the two alleles: […]
1. In a human population, the genotype frequencies at one locus are 0.75 AA, 0.20 Aa, and 0.05 aa. What is the frequency of the A allele [f(A)] and a allele [f(a)] for the population? Are they in Hardy-Weinberg equilibrium? (5 pts) 2. Calculate the number of heterozygotes in a population with p = 0.6 […]
Topic 1 : Jennifer Doudna on CRISPR. View the NBC News story about CRISPR (1)*, including an interview with its co-discoverer, Jennifer Doudna. Then, address the following issues: (a) What applications of CRISPR look particularly promising for improving human well-being? (b) What sort of ethical issues have arisen or are likely to arise with the […]
Topic 1 : Population Distribution of Termites in a Savanna. Watch the video (1) describing Corina Tarnita’s research on the spacing of termite mounds in savanna ecosystems, and then address the following: (a) What were Tarnita’s findings about the spacing of termite mounds? (b) What does Tarnita think is the main factor that governs the […]
Topic 1: Ashleigh is a vegetarian. She stopped eating meat and dairy products when she was 15 years old. She does eat fish and eggs, though, along with a variety of other foods. Ashleigh is now 28 years old and wants to start a family. What nutrients should concern her? What should she do to make […]