Cystic fibrosis is a genetic disorder. It is a recessive trait that is determined by two alleles. Suppose two parents each carry at least one recessive allele, but neither of them has cystic fibrosis. Which statement reflects the likelihood of a child of these parents having cystic fibrosis? The child cannot have the disease because only the dominant alleles will be passed on.
The child will have the disease because only recessive alleles will be passed on.
The child may or may not have the disease because a recessive gene from each parent may be passed on.
The child may or may not have the disease because the disease does not depend on the alleles of the parents.

its C, The child may or may not have the disease because a recessive gene from each parent may be passed on.

Explanation: good luck

C Is correct

Explanation:

Took the test today, 2021 ED

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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mammal

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