Exam 4: Genetics, Evolution, Development, and Plasticity

 Roger Sperry cut a newt's optic nerve and rotated the eye. Axons from what used to be the dorsal part of the retina (now located on the ventral side) grew back to the target areas ____.

 A gene is found that controls the age at which a man grows bald, if at all. That gene seldom affects women, even if they have the gene. What kind of gene is this MOST likely to be?

 Changes in single genes are called ____.

 An evolutionary psychologist would likely be most interested in studying ____.

 A cortical cell originally responded to stimulation of the middle finger. After amputation of that finger, it begins responding to the second and fourth fingers. Which action most likely accounts for this?

 Ischemia is to ____ as hemorrhage is to ____.

 What modern day practice helps prevent an inadequate production of thyroid hormones?

 The fluid-filled cavity of the developing neural tube becomes the ____.

 Genes become more prevalent in a population if they contribute to reproductive success.

 After the migrating neuron reaches its destination, ____ begin to form.

 Which event is the most common cause of a stroke?

 Research on laboratory animals indicates that cannabinoids are most effective if taken ____.

 Breeding some animals selectively because they possess some desirable characteristic is called ____.

 The formation of new synapses is called ____.

 Chemicals in the amphibian tectum guide the growth of axons from the retina to their correct location in the tectum by ____.

 Apoptosis is distinct from necrosis, which is death caused by an injury or a toxic substance.

 Why is a genetic explanation for altruism problematic?

 Immature neurons experimentally transplanted from one part of the developing cortex to another ____.

 Which factor appears to be particularly important for branching of neurons during brain development?

 Which of the following best characterizes how axons arrive at the correct target cells?