Tutor profile: Steve M.
Complete the sentences with the proper form of the indicative tense of the verb in parentheses. Yo ________ un carro. (querer) Me _______ comer pizza (gustar) Tu ______ muy viejo/a. (ser)
quiero gusta eres
Compare and contrast classical and operant conditioning.
Classical conditioning is when two unrelated stimuli are presented together over an extended period of time, to the point where the subject begins to subconsciously expect one of the stimuli to follow the other. For example, if a dog receives food every time it hears a bell, over time the dog will start to salivate (expecting food) whenever it hears a bell. Operant conditioning is the reinforcement or punishment of a target behavior, in an effort to make the subject perform that behavior more or less often. For example, giving a mouse an electrical shock when it presses a lever is operant conditioning, in that there is a punishment (the shock) applied whenever a behavior (pulling a lever) is performed. Giving the mouse food when it pressed the lever would be a form of reinforcement, as the intention would be to convince the mouse to perform that behavior more often.
Describe the general genealogical pattern/distribution of mitochondrial inheritance with regard to a particular phenotype. Do not consider modifiers such as anticipation, penetrance, etc.
Mitochondrial inheritance means that the phenotype is carried on mitochondrial DNA. Mitochondrial DNA phenotypes are expressed by males and females equally, but are only passed down by a female to her children. Thus, considering a phenotype with mitochondrial inheritance, all offspring of an affected female will show the phenotype. However, an affected male will never pass the trait to his offspring.
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