The cleft chin trait follows a dominant-recessive inheritance pattern with cleft chin being the dormant trait. john is heterozygous for a cleft chin as is his wife betty. john and betty have three kids all of which have a cleft chins. according to punnett square prediction what is the likely hood that their next child will have a cleft chin? 100% chance because the mother and father both have cleft chins 25% chance the same probability for all subsequent children 75% chance the same probability for all subsequent children 0% because the three pervious children have cleft chins already

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.