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What is Bergey’s Manual of Systematic Bacteriology? What information does it contain?

Based on the Darwinian Snails lab, if shell thickness is NOT heritable, how many generations of snails does it take before the crabs cause most snails to have very thick shells?

Huntington’s disease is caused by a mutation in the huntingtin gene, HTT.  The mutant allele that causes the disease is dominant to the normal allele. Most people with the disease first notice symptoms between the ages of 30 and 50. Symptoms include mood and behavioral changes and tremors, to name a few. Most people die within 20 years of their diagnosis. Claudette and Garbanzo get married and have two children, Lola and Moose. Garbanzo is diagnosed with Huntington’s in his 50s, and Lola is diagnosed with Huntington’s at age 36. Claudette and Moose are never diagnosed with the disease, and both live into their 80s. Use h to refer to the functional huntingtin allele, and H to refer to the huntingtin allele that causes Huntington’s disease. What are the genotypes of all 4 individuals in the family for the huntingtin gene? Claudette [a1] Garbanzo [a2] Lola [a3] Moose [a4]

Simploids are a fictitious species of animal. One population of Simploids lives in Brighton, a region that receives full sun 80% of the time. Another population of Simploids lives in Shady Grove, an area that is often cloudy and rainy. All Simploids have a gene called SUN1, which protects against the harmful UV rays from the sun. The Simploids living in Brighton are much more likely to have an allele of the SUN1 gene that offers more UV protection, compared to those from Shady Grove. You perform a reciprocal transplant with Simploids from both populations and find that Simploids have higher fitness when reared in their native environment. What does your experiment show evidence for? [a1] Some Brighton Simploids with the high-protection SUN1 allele decide to move to, and join, the Shady Grove population. Has the Shady Grove population evolved? [a2]

Based on the Darwinian Snails lab, periwinkle snails living in New England 100 years ago had shells that were

Now imagine that a family of packrats arrives in Quiet Valley. Packrats are small mammals that eat chili fruits. When a packrat eats a chili fruit, it destroys the seeds inside. The hotter a chili plant’s fruits, the better defended they are against packrat attacks. The diagram below shows a typical chili fruit from the Quiet Valley population before the packrats arrived and a typical chili fruit from the Quiet Valley population many generations after the packrats arrived. Which of the following best describes the role of packrats in causing the chili population to change:

Isoniazid is an antibiotic commonly prescribed to treat Mycobacterium tuberculosis infections (tuberculosis). The antibiotic becomes lethal to bacteria only after one of the bacteria’s enzymes transforms isoniazid into a poison. Some M. tuberculosis do not have a functional copy of this enzyme and are therefore immune to the lethal effects of isoniazid. However, these resistant individuals grow and metabolize nutrients more slowly. The observation that resistant individuals grow and metabolize nutrients more slowly than susceptible individuals is an example of what?

After a stroke, Ralph can understand commands but cannot speak words. He prefers to use gestures or to write to communicate with others. Which area of the brain is injured?

If you cannot make and store long-term memories, which structure would be damaged?

Which cranial nerve is responsible for carrying taste information from the anterior two-thirds of the tongue?