Chargaff's Rule, stating that in DNA the amount of adenine equals thymine and guanine equals cytosine, guided Watson and Crick in formulating the double helix DNA model. The model involves two polynucleotide chains twisted together, with specific base pairings as suggested by Chargaff's Rule, enabling semi-conservative replication.
Chargaff's Rule, named after biochemist Erwin Chargaff, postulates that in any sample of DNA, the amount of adenine (A) is equal to that of thymine (T), and the amount of guanine (G) equals the amount of cytosine (C). This observation is often represented as A=T and G=C. This equality arises from the specific pairing of these bases in the DNA double helix structure, whereby A always pairs with T and G with C.
This principle was critical in guiding James Watson and Francis Crick in their proposal of the double helix model of DNA. The model explained that DNA consists of two polynucleotide chains running antiparallel and twisting around each other, with the specific base pairing noted in Chargaff's Rule. This allows for the semi-conservative replication of DNA, where half of the parent DNA molecule is conserved in each of the two daughter DNA molecules following replication.
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Answer:
in European countries, they used felt because it was waterproof. they used it for clothing, rugs, and blankets.
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beliefs are most like their own.
B. The media are for-profit businesses, unable to be fair or objective in the interest of the public.
C. Candidates already in office receive more media attention than those who are trying to take their
positions.
D. People always vote for the person the media determine is most qualified, rather than the candidate
who can bring about change.
Answer:
B. The media are for-profit businesses, unable to be fair or objective in the interest of the public.
Explanation:
The media's objective is to sway the public into believing what they say, and to essentially (though the term may be harsh) brainwash the viewer to see the situation as the media see's it, instead of allowing them to have their own objective view. Of course, it does not work 100% like this, but the way the media portrays events can definitely affect the view of a person.
For example, in recent events, President Trump proposed a tax deduction to help small businesses and the ordinary person to survive through the wake of the Corona-virus and the stay-at-home order. However, while it may seem like a good thing, the media sways the public's opinion to believe that the tax cuts were only beneficial to the wealthy. This sways people's beliefs of whether the tax cut was beneficial as a whole or not, but Trump did a tax cut, which is all that matters.
Another example can be found in a not-as-recent event, where President Obama signed tax cuts into law. Most media coverage of it was neutral at most, even positive sometimes. This shows that there is bias inside the media, and those who read, listen to, or watch certain media would be accustom to their way of thinking as well.
Remember, all media is there to make a profit, and to do so, they must 1) have large amounts of viewers, and 2) be able to influence others into seeing events the way they see it. There is no objective views in the media, for everybody has their own opinions, and own set of beliefs.