<span><span>1.
</span>Knowledge of the researcher. It’s important to
consider the researcher’s capacity and capability in the field which he/she
wants to discover. In sense, it is in his proximity of study in order for
him/her to do such approach </span>
<span><span>
2.
</span>Tool used. Making sure whatever measurement the
investigator is using should be valid and reliable. Avoiding the possible
results to become biased and unstable due to errors which should be avoided.</span>
<span><span>
3.
</span>Sampling method. Obtain the samples which are
appropriate and that would cover the entire participants studied –not a half
but the entirety of what you want to study. Entirety means as much as the
possible sample covers.</span>
<span><span>4.
</span>Population. Knowing the involved participants
and respondents in the study, properly defining and clustering helps the study
avoid bias. </span>
The purpose of MHC molecules is to bind and display pathogen-derived peptide fragments on the cell surface so that the relevant T lymphocytes can recognise them.
<h3>What are MHC proteins, or major histocompatibility complex proteins?</h3>
MHC, or the major histocompatibility complex, is a set of genes that produce proteins located on the cell surfaces and that aid the immune system in identifying foreign objects. In all higher vertebrates, MHC proteins are present. The complex in humans is also known as the HLA (human leukocyte antigen) system.
<h3>What exactly are MHC proteins, and why are they crucial?</h3>
The major histocompatibility complex (MHC) is a collection of genes that code for cell surface proteins that play a significant part in the immune response. MHC molecules have a major role in how they display antigens.
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Answer:
Mutations must not occur to introduce new alleles to the population. No gene flow can occur to increase variability in the gene pool. A very large population size is required to ensure allele frequency is not changed through genetic drift. Mating must be random in the population.
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Stage 1 which is the high fluctuating stage has both high birth rates and high death rates.
<h3>What is Famine?</h3>
This is a condition which is characterized by lack of food as a result of some factors such as war, natural disaster etc.
In the stage 1, the population growth is slow and fluctuating as a result of high incidences of disease and famine.
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