<span>Mendeleev was the first scientist to arrange the known elements into a table. Mendeleev decided to arrange the known elements by atomic weight and allowed Mendeleev to predict the discovery to new elements by finding and placing gaps in the table where there was a jump in atomic weight.
Moseley used the x-ray wave lengths of the elements are arranged them in a table using the experimental data. This new technique resulted in some differences in the two tables like argon and potassium switching paces. cobalt was placed before nickle and tellurium was before iodine.</span>
Answer:
DNA molecular weight standard controls, also known as DNA ladders
Explanation:
A DNA ladder is a molecular-weight size marker used to identify the size of the PCR products in a gel electrophoresis. The DNA ladder consists of a solution containing double-stranded DNA fragments with different molecular weights including, among others, 50 base pairs (bp), 100 bp, 1000 bp and 3000 bp DNA fragments. The concentration of each DNA fragment in the DNA ladder must be sufficiently high to be visualized on the electrophoresis gel.
Because identical twins begin as a single fertilized egg that then separates, identical twins share 100 percent of genetic makeup.
<h3>IDENTICAL TWINS:</h3>
Identical twins are a type of twins characterized by their phenotypic similarity. They look so much alike that they are almost morphologically indistinguishable.
Their similarity emanates from their genetic content. Identical twins are formed when two sperms fertilize a single egg, which then splits into two.
Since identical twins begin as a single fertilized egg that then separates, this means that they share 100% of their genetic makeup.
Learn more about identical twins at: brainly.com/question/986349
Answer:
color changed.
and the temperature changed.
Explanation:
