One of the key pieces of information that Watson and Crick used in determining the secondary structure of DNA came from experiments done by E. Chargaff, in which he studied the nucleotide composition of DNA from many different species. Chargaff noted that the molar quantity of A_was always approximately equal to the molar quantity of T and the molar quantity of C was always approximately equal to the molar quantity of G. How were Chargaff's results explained by the structural model of DNA proposed by Watson and Crick?

One of the key pieces of information that Watson and Crick used in determining the secondary structure of DNA came from experiments done by E. Chargaff, in which he studied the nucleotide composition of DNA from many different species. Chargaff noted that the molar quantity of A_was always approximately equal to the molar quantity of T and the molar quantity of C was always approximately equal to the molar quantity of G. How were Chargaff's results explained by the structural model of DNA proposed by Watson and Crick?

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter8: The Structure, Replication, And Chromosomal Organization Of Dna

Section: Chapter Questions

Problem 14QP: State the properties of the WatsonCrick model of DNA in the following categories: a. number of...

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r this oligonucleotide, ● Classify if RNA or DNA? Justify your choice. determine the sequence of this segment, labeling the 5' and 3' ends. 2. One of the key pieces of information that Watson and Crick used in determining the secondary structure of DNA came from experiments done by E. Chargaff, in which he studied the nucleotide composition of DNA from many different species. Chargaff noted that the molar quantity of A was always approximately equal to the molar quantity of T, and the molar quantity of C was always approximately equal to the molar quantity of G. How were Chargaff's results explained by the structural model of DNA proposed by Watson and Crick? O=P-OCH, O OH O=P- OCH, 0 O HN OH O=P-OCH₂ 0 NH NH₂ NH₂ 00 OH OH
1.Calculate the average number of nucleotide pair per micrometer of DNA double helix using the dimensions proposed by Watson and Crick. 2. Considering the number of base pairs, compute for the actual length of the given DNA strand in micrometer. (1m = 10,000Ao) 3' C G A C T A C 5' 5' G C T G A T G 3'
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The complementary strands of DNA in the double helixare held together by hydrogen bonds: G ≡ C or A = T.These bonds can be broken (denatured) in aqueous solutions by heating to yield two single strands of DNA(see Figure 1-13a). How would you expect the relativeamounts of GC versus AT base pairs in a DNA doublehelix to affect the amount of heat required to denatureit? How would you expect the length of a DNA doublehelix in base pairs to affect the amount of heat requiredto denature it?
11) Examine the following two DNA sequences. Sequence 1: ATGCGATGCTAGCAT Sequence 2: ATGCGATGATAGCAT If both of these sequences code for proteins, how might the function of protein 2 differ from the function of protein 1? Use the table below for assistance. U C A G บบน UUC UUA UUG CUU CUC CUA CUG U Phe GUUT GUC GUA GUG Leu Leu AUU AUC lle AUA AUG Met or Start Val Ceweg 232 www... UCU UCC UCA UCG CCU CCC CCA CCG ACU ACC ACA ACG C GCU GCC GCA GCG Ser Pro Thr Ala CAU CAC CAA CAG A AAU AAC AAA AAG UAU U UAC C UAA Stop UGA Stop A UAG Stop UGG Trp G Tyr GAA GAG His Gin Asn Lys GAU GAC Asp G c] Glu UGU UGC CGU CGC CGA CGG AGU AGC AGA AGG GGU GGC GGA GGG Cys Arg Ser Arg Gly U C A G U C A G U C A G by Calin me press A) Protein 1 and protein 2 will function exactly the same. B) Protein 1 will be shorter than protein 2, so they will not function the same. C) Protein 2 will be shorter than protein 1, so they will not function the same. D) Protein 2 has a different sequence, so it will function…
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Biochemist Erwin Chargaff was the first to note that, in DNA, [A] = [T] and [G]= [C], equalities now called Chargaff’s rule. Using this rule, determine the percentages of all the bases in DNA that is 20% thymine.