Rather, each myelin sheath insulates the axon over a single long section and, in general, each axon comprises multiple long myelinated sections separated from each other by short myelin sheath-gaps called nodes of Ranvier. ... In the CNS, axons carry electrical signals from one nerve cell body to another.
When an environment is hypotonic, the cell has more solute so solvent move from outside the cell to inside causing the cell to swell.
WHAT IS TONICITY?
- Tonicity is the ability of a solution to induce water loss or water gain in a cell. A solution can either be; hypertonic, hypotonic or isotonic
- A hypertonic solution has more concentration of solute than its surroundings while a hypotonic solution has less concentration of solute compared to it's surroundings.
- If a hypotonic solution has less solute, this means that it will have more solvent (water). Based on the principle of osmosis, water moves from a region of high concentration to region of low concentration.
Hence, water will move into a cell that is located in a hypotonic environment, causing it to swell.
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100 percent, because if both parents have the same genotype of Tt then most likely the child will have 100percent.
<em>B. Has the same allele on both chromosomes in a chromosome pair. </em>
<u>Here is why:</u>
Homozygous means the same, while heterozygous means different. If both of the same alleles are on both chromosomes, then it will be a homozygous.
There can be two types of homozygous alleles.
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<em>Homozygous Dominant</em>: BB
<em>Homozygous Recessive</em>: bb
<u>Notice in both of these they were the same alleles.</u>
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<em>Heterozygous</em>: Bb
<u>Notice how both are different alleles.</u>
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Below I have attached a diagram of a Punnett square I have made.
On the left is a homozygous recessive allele pair.
On the top is a heterozygous allele pair.
True
because producers make their own food without depending on others. So in this case plants are producers is true because they make their own food with photosynthesis.
