Answer:
1/4
Explanation:
Given the genotype of parent plants: Ggpp and ggPp. The parent plant with Ggpp genotype will form two types of gametes in 1:1 ratio= Gp and gp.
The parent plant with genotype ggPp would form two types of gametes in 1:1 ratio= gP and gp. The random fusion of these gametes from two parents would obtain progeny in the following phenotype ratio=
1/4 yellow purple: 1/4 yellow white: 1/4 green purple: 1/4 green white
Therefore, 1/4 of the total progeny would be "yellow and white".
<span>Pacinian corpuscles are rapidly adapting mechanoreceptors so they respond only at the onset and offset of the stimulus. The Pacinian corpuscle has a single afferent nerve fiber. Its end is covered by a sensitive receptor membrane whose sodium channels will open when the membrane is deformed in any way. Pressure thus causes sodium to enter the neuron and create a generator potential. If this potential reaches a certain threshold nerve impulses are formed. This impulse is now transferred along the axon with the use of sodium channels and sodium/potassium pumps in the axon membrane. The magnitude of the stimulus is encoded in the frequency of impulses generated in the neuron. So the more massive or rapid the deformation of a single corpuscle, the higher the frequency of nerve impulses generated in its neuron.</span>
I believe it is called in inner core