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Butyrophilin (BTN2A2) is a protein important for shaping the human brain early in development and for learning.  In individuals with biopolar disorder, the BTN2A2 gene is more methylated than the BTN2A2 gene in individuals without bipolar disorder.  Which of the following statements is ACCURATE?

In this patient the immune system is stimulating receptors for thyroid stimulating hormone. Which of the following would be true? 

Heather voles are rodents that live in forested, alpine, and tundra areas.Imagine in voles, that brown (B) coat color is dominant to gray (b) coat color.  The coat color gene is on an autosome.   A brown female is mated to a gray male.  In their litter are 11 young; three are gray and eight are brown.  What is the genotype of the female?  

Agouti mice have a phenotype of yellow, overweight, and susceptible to cancer and diabetes.  The agouti trait is passed from parents to offspring.  Jirtle and Waterland were able to breed agouti mice who produced offspring that did NOT have the agouti phenotype.  How did they do this?

Hormones differ from neurotransmitters in which of the following ways?

The pedigree below is from a family with a rare disease.  The most likely mode of inheritance of this disease is [mode] and the genotype of individual II-3 is [genotype].    

Opioids such as heroin or fentanyl do which of the following?  

Eye color in humans is influenced by up to 16 different genes, including two genes on chromosome 15 and a gene that encodes for the brown color pigment melanin.  Eye color is an example of

Research shows that sleep is important for learning and memory.  When you are studying biology concepts for an exam, which of the following is accurate regarding retaining the material you study?Select all correct choices.

Which of the following statements related to the sodium-potassium pump is false?