The mutation as the Hardy- Weinberg equation assumes that there would be no evolutionary pressures such as mutations. Hardy- Weinberg represents an 'ideal' where the allele frequencies would remain constant
The rodents mutate the new grey allele.
<span>How many chromosomes would a cell have during metaphase i of meiosis if it has 12 chromosomes during interphase?
24</span>
Answer:
Explanation:The cells that make up the xylem are adapted to their function: They lose their end walls so the xylem forms a continuous, hollow tube. They become strengthened by a substance called lignin . Lignin gives strength and support to the plant.
Answer:
Gamma-aminobutyric acid (GABA)
Explanation:
Epileptic seizures are induced by a preponderance of electrical activity within the network of neurons in the brain. Synapsis is the meeting point between the axon of one neuron and the dendrite of another neuron. Electrical signals don't cross through the synapsis, instead, they are conveyed in a chemical form by neurotransmitters.
The neurotransmitters convey messages across the synapsis in a chemical form until they find to the receptor of the dendrite of the receiving neuron. Neurotransmitters can either be excitatory or inhibitory in function i.e. the receiving neuron can either be stimulated to action or inhibited from action. The main excitatory and inhibitory neurotransmitters in the brain are Glutamate and Gamma-aminobutyric acid (GABA) respectively.
There must be a balance between excitation and inhibition of neurons, in order to ascertain the optimal functioning of the brain. Too much Glutamate or too little of GABA can make neurons hyperexcitable and hyperexcitability of neurons makes the brain susceptible to seizures.
Phosphorus moves in a cycle through rocks, water, soil and sediments and organisms. Over time, rain and weathering cause rocks to release phosphate ions and other minerals. Once in the plant or animal, the phosphate is incorporated into organic molecules such as DNA. i hope this helped <3
