Please be a little more specific on what you want to ask. I can be of some help.
Answer:
This is called replication.Generally, in an experimental set up experimental findings needed to be repeated continuously until a reasonable similar conclusion is reached.
Scientists needed to carry out similar experimental findings to get a similar results, to arrive at a reasonable conclusion.
It is the stage that is important for them to check the results arrived at.Replication therefore helps to identify any variability in the experimental results,for accurate results.
Explanation:
Answer:
D) The chromosomes are composed the two sister chromatids and are lined up along the equator of the cell.
Even a country in which the birthrate and death rate are equal can experience population growth if it also has immigration.
- In evolutionary time, migration will often quickly converge gene frequencies among populations. Migration is a powerful mechanism for balancing the gene frequencies of subpopulations in a species in the absence of selection. Gene frequencies will eventually equalize if the migration rate is larger than zero.
- Migration refers to the movement of people, groups, or populations. Migration facilitates gene flow, or the transfer of genes from one population to another, in terms of genetics. Migration—or, to be more precise, gene flow—alone will quickly bring the gene frequencies of the two populations together if they initially had distinct gene frequencies and if selection is not at work.
Therefore, immigration is the correct answer.
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