How many defective copies of a gene must someone inherit to express a disease caused by a dominant gene? How many defective copies of a gene must someone inherit to express a
recessive disorder? What is the expected phenotypic ratio of affected to unaffected individuals for
a dominant disorder?

My question says on my assignment. read the following scenarios and decide which of the properties of life are being described. the first one is. katherine stopped on the way to school to grab some donuts. 2. because a dog cannot sweat, it has to pant in order to stay cool. 3. an elephant trun had no bone but 4,000 muscles. i have no idea what i am supposed to anwer. i can't find the answer in my notes or book that i can understand anyway

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.

Which of the following would be most useful for detecting the brain areas that are most active as a person performs mathematical calculations? a. a brain lesionb. an interneuronc. a pet scand. a hemispherectomy