Select the feature that is incorrect about this DNA double strand: 5'-ATGCCCGGAAC-3' 5'-TACGGGCCTTG-3' Chargaff's rules are not observed. The nucleotides are not base paired correctly. U should be used instead of T. The strands are not anti-parallel.
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Step 1: The given DNA strands are: 5'-ATGCCCGGAAC-3' 5'-TACGGGCCTTG-3' Show more…
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The rules formulated by Erwin Chargaff state that A = T and G = C in any sample of DNA. A = C = G = T in any sample of DNA. the base composition of DNA is completely variable. A = G and C = T in any sample of DNA. A = C and G = T in any sample of DNA. Franklin's X-ray crystallography data suggested that DNA follows Chargaff's rules. replicated conservatively. is the genetic material. has a helical structure. replicated semiconservatively. According to the Watson and Crick model for the structure of DNA, _____ are on the outside and _____ are on the inside of the double-stranded DNA molecule. The strands run _____. sugar-phosphate groups; nitrogenous bases; haphazardly sugar-phosphate groups; nitrogenous bases; antiparallel nitrogenous bases; sugar-phosphate groups; parallel nitrogenous bases; sugar-phosphate groups; haphazardly nitrogenous bases; sugar-phosphate groups; antiparallel The pairing of specific bases in the Watson and Crick structure of DNA is known as _____ base pairing. parallel conservative semiconservative antiparallel complementary
Shaiju T.
You are analyzing a segment of double-stranded DNA. For each strand, you quantify the percent composition of A, T, G, and C. In addition, you detect a fifth base (M), which is a modified form of one of the four bases. Initially, you aren't certain which base is modified, so you decide to use Chargaff's rule to determine the identity of the modified base. Your data for each strand: strand 1) 24% T, 17% C, 38% G, 17% A, 4% M; strand 2) 17% T, 33% C, 21% G, 24% A, 5% M. Which base is the modified base?
Madhur L.
What physical characteristic of DNA is affected by the pairing of purines with pyrimidines? Its length. Its width. Its parallel nature. Its antiparallel nature. Its helix length. Double-stranded DNA looks like a ladder that has been twisted into a helix, or spiral. The side supports of the ladder are individual nitrogenous bases, alternating bases and sugars, alternating bases and phosphate groups, alternating sugars and phosphates, and alternating bases, sugars, and phosphates. Chargaff's rule states that DNA must be replicated before a cell can divide. Viruses enter cells without their protein coat. Only protein from the infecting phage can also be detected in progeny phage. Only nucleic acids enter the cell during infection. The amount of cytosine equals the amount of guanine. Which element is not found in DNA? Carbon. Oxygen. Nitrogen. Hydrogen. Sulfur. A strand of DNA with the sequence 5'-ATTCCG-3' would have a complementary strand with the sequence 5'-TAAGGC-3', 5'-ATTCCG-3', 5'-ACCTTA-3', 5'-CGGAAT-3', and 5'-GCCTTA-3'.
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