In recent molecular genetic studies, genes associated with the neurotransmitter Dopamine have been linked to ADHD.
ADHD stands for Attention Deficit Hyperactivity Disorder. People with ADHD have a hard time focusing on tasks. Scientists have found that the low levels of dopamine in the brain are associated with the symptoms of ADHD. It is because the neurons in the brain have a high amount of protein called the dopamine transporters. These proteins block the dopamine from passing between the neurons. This decreases the effect of dopamine.
<u>Answer:</u>
Nature consists of both the organism and the environment. The relationship between them are intertwined. Organisms are mainly divided into three
a) The producers
b) The consumers
c) Decomposers
These three organisms are interlinked with each other. Without them there is no existence of the environment. The producers produce the food, the consumers consume them and the decomposers decompose and release it in the form of energy. In each cycle energy is released and absorbed. The balance in the environment is maintained by the food pyramid.
The null hypothesis here is "the insertion of the wild type MSH2 gene does NOT reduce the number of <em>C. neoformans </em>C3 and C6 cells". This hypothesis is not supported by Figure 2, thereby the alternative hypothesis is accepted.
In the scientific method, a null hypothesis is a plausible explanation that states that there is no statistically significant difference between a certain feature and/or variable of a particular population.
In this case, the null hypothesis indicates that there are no differences associated with the insertion of the wild-type MSH2 gene variant (i.e., the normal allele) in the growth rate of <em>C. neoformans</em> strains on a medium containing a toxic chemical (mutagenic agent).
Figure 2 does not support the null hypothesis because the growth of wild-type MSH2 gene inserted <em>C. neoformans</em> C3 and C6 strains is inhibited when they grow on a medium containing a toxic chemical, thereby this hypothesis is rejected and the alternative hypothesis is accepted.
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Answer:
Volume
Explanation:
In chemistry, the CONCENTRATION of a solution is the amount of a substance present within a volume of another substance. In other words, the concentration refers to the amount of a solute dissolved in a particular volume of a solvent to make a solution.
Concentration can be expressed in mass per volume i.e. g/cm³ or mol per volume i.e. mol/L or mol/dm³ etc. The amount of a substance is measured in Mass or mole, while the volume of a substance in Litres (L).
