Please try The inheritance of a flower color in snapdragons illustrates incomplete dominance: when a red snapdragon is crossed with a white one, all of their offspring are pink. what fraction of the offspring would be pink if the two of these pink snapdragons were crossed?
A- 25%
B- 50%
C- 75%.
D- 100%

50%

Explanation:

To solve this question, we need to use a Punnett square. Let "R" represent the gene for red flowers and "W" represent the gene for white flowers. Since two pink flowers are being crossed, their genotypes are "RW".

     R    W

R   RR  RW

W  RW WW

Out of the four possible outcomes, two result in the "RW" genotype. Two out of four is 50%. Since we know that the "RW" genotype results in pink flowers, 50% of the offspring would have pink flowers.

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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