The correct statement is: (2) Sister chromatids are genetically identical.
Sister chromatids are the copies of a single chromosome. These are therefore genetically identical. The sister chromatids are joined together at the region called centromere with the help of certain proteins. The chromatids are formed during the S phase of the interphase due to a process called duplication.
Chromosome is the compact form of DNA. It consists of the genetic material and certain proteins called histone proteins. The main role of chromosome can be seen during cell division. This is because the division of genetic material takes place in the chromosomal form.
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The biggest reason for that her work is a success is because new ideas often develop from unsuccessful experimentation.
The scientific process not only relies on proper experimental methods and determination, but it also is dependent on the failures of the experiments of scientists. When experiments fail, other scientists obtain a guideline of what to do and what not do. This improves their own experiments and helps them move forward.
<span>The correct answer:
copper is important in the synthesis of collagen.</span>
Copper activates an enzyme called lysyl oxidase that's required for collagen maturation.Lysyl oxidase catalyzes the formation of aldehydes from lysine residues in collagen and this results in cross-linking collagen (stabilization of collagen fibrils).
The theory that explains this scenario is the tragedy of the commons theory.
<h3>What is the tragedy of the common theory?</h3>
It is an economic theory that explains how individual gains create a general problem in society at large.
When individuals pursue personal gains even at the expense of creating a general problem in society, it results in the tragedy of the common.
Indiscriminate dumping of garbage in the ocean by countries results in a general problem that affects the entire world vis a vis the collapse of many fishing industries.
Fishes represent a source of protein for man all over the world.
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The social media play the role of the main issue in the outbreak in the Contagion movie. The character Krumwiede makes much false information with his blogs which create a different problem of contagious thing despite the virus<span>. Many people trust the blogs' information. This information made them buy a contagious virus rather than a medicine.</span>
