Answer:
See the answer below
Explanation:
<em>When an object on a sample slide can be perfectly focused at lower objective but cannot be focused at higher objectives, the problem can be attributed to two factors depending on the size of the objective</em>:
1. At 40X objective, the most likely problem would be that the object on the sample slide is not in the center of the field. Adjusting the slide until the object on it is at the center of the field would likely solve this problem.
2. At 100X objective, the problem could also be that the object on the slide is not at the center of the field, could be that there is no immersion oil on the slide or a combination of the two factors. Dropping an immersion oil on the slide and adjusting the slide to bring the object on it to the center would solve this problem.
Answer:
The correct answer is: Gain-of-function mutation.
Explanation:
- Mutation can be defined as the sudden alteration in the sequence of DNA or Deoxyribonucleic Acid, which if happens in the protein-coding region of the gene can cause the protein to become non-functional or can change the function of the protein.
- If such a mutation happens in the untranslated region or the regulatory sequence of the gene, it can cause:
- the gene to get constitutively (all the time) expressed at high levels, such that its expression can no longer be regulated or controlled. This type of mutation is called a Gain-of-function mutation.
- the expression of the gene to get repressed or suppressed, such that very less amount of protein or no protein that is encoded by the gene is produced. This type of mutation is called a Loss-of-function mutation.
Answer: neurotransmitters
Explanation:
The neurotransmitters are the chemicals which are released at the synaptic cleft or synapse present between the two neurons. These are the chemical messengers which carries the signals from one neuron to other and helps in transmission of the information. The chemical molecules of the neurotransmitters usually diffuse across the synaptic cleft and they bind to the receptors of the postsynaptic cells.
Answer:
Qualitative data simply is the none numerical data which is simply obtained through observations and recording it. It talks about mainly quality. While quantitative data is the numerical data input. It talks about quantity, how much, how many and so on.