Sites within the human genome where a short nucleotide sequence is repeated many times in a row are known as short tandem repeats.
DNA sequences with 2 to 6 base pairs are known as short tandem repeats (STRs), and they are dispersed throughout the genome. Multiple repetitions of these brief sequences are possible, and the number of repetitions varies greatly between people. The capacity to distinguish one sample from another is made possible by the great variability.
The Y-STR method's primary benefit is its capacity to identify the male component even in severe male-to-female DNA mixes. The number of semen donors for combinations of two or more male persons can be determined using it, as well as for quickly screening a large number of stains.
Due to their occasionally poor biostatistical efficiency and the potential to detect one or more genetic discrepancies that might potentially be explained by mutational events, STRs have a few drawbacks when examining genetic links in deficient cases.
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Explanation:
Effectively is thinming fast and right
Postively is thinking right
Answer:
The correct option is;
It was possible to learn a trade, hire themselves out, and make enough money to eventually buy their freedom
Explanation:
Of the slaves that were put to work, some worked on other forms of agriculture aside from cotton plantations, such as tobacco, corn and livestock farming, while several slaves worked on skilled jobs and as laborers in the Southern cities with some being able to buy their freedom with the amount of money they were able to save while working, to the extent that there were some free black populations in the cities of the South.
More and more people moved westward to claim lands that were
once inhabited by Native Americans. This
was encouraged by the government. This
also led to several conflicts with Indians that would later lead to a war
between the Indians and U.S. army. In
the end, the west was completely settled completing the U.S. expansion to that
area.
