Question: Suppose that you perform the following monohybrid cross in dogs: Aa X Aa, in which the dominant A allele produces black coat color and the recessive a allele produces a white coat color. Imagine that all the offspring in the F1 generation are black. How do you interpret this outcome? […]

Q1. An abandoned indiana coal mine spoil bank contains chunks kof pyrite minerals. Under constant erosion and weathering, pyrites leech large amounts of sulfuric acid. The spoil banks are also mixed with large quqntities of basic limestone and clay carbonates. What has to happen over time? Q2. Let’s assume that […]

Question: In a plant the gene e+ codes for a certain enzyme. The gene r+ codes for a regulatory protein that binds to the regulatory region of gene e+ in order for transcription to occur. A recessive mutation is obtained in each of the genes, r and e, respectively. A dihybrid […]

1. How does mitosis differ from meiosis? When do they occur in the body and what is their purpose? 2. Name and briefly describe 4 different chromosome abnormalities that can occur. (Use actual conditions and describe how they affect the carriers). 3. A child is born with attached ear lobes. […]