The ability of a person to roll their tongue is controlled by a single gene with two alleles. About 65% of people have the dominant allele, and can therefore roll their tongue. Stephanie cannot roll her tongue. Without yet knowing her mate, what is the probability that Stephanie’s first child […]

Biology Assignment “Effects on the Environment” Note: Online students, please respond to one of the following four bulleted items. • Discuss three positive and three negative impacts of humans on the biosphere. Which positive and negative impacts do you believe are the most significant to consider. Justify your response. • […]

1. Environmental Errors Using examples from anywhere in the animal kingdom except humans, discuss errors in development. The number of errors you discuss depends on the level of specificity, but you must include in your answer at least one gene-mediated error and one environmentally induced error. Define and describe the […]

This week you are exploring the characteristics of our species and the role we play in our ecosystem. Two terms commonly used to describe an organism’s place in the environment is their “habitat” and their “niche.” A habitat is defined as an area inhabited by particular species. A niche is […]