Moira, a biochemistry major, wanted to explore the shapes a single-stranded DNA molecule can take. She sketched the two shapes below. Her professor was impressed with Moira’s imagination and artistic ability, but she informed Moira that only one of her sketches was feasible. In the sketches, the lines indicate complementary base pairing. (d) Would a new double-stranded molecule assume the shape similar to one in the drawing? (e) Why or why not?

Moira, a biochemistry major, wanted to explore the shapes a single-stranded DNA molecule can take. She sketched the two shapes below. Her professor was impressed with Moira’s imagination and artistic ability, but she informed Moira that only one of her sketches was feasible. In the sketches, the lines indicate complementary base pairing. (d) Would a new double-stranded molecule assume the shape similar to one in the drawing? (e) Why or why not?

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 16QP: A beginning genetics student is attempting to complete an assignment to draw a base pair from a DNA...

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Using Figures 8.7 and 8.9 as a guide, draw a dinucleotide composed of C and A. Next to this, draw the complementary dinucleotide in an antiparallel fashion. Connect the dinucleotides with the appropriate hydrogen bonds. FIGURE 8.9 The two polynucleotide chains in DNA run in opposite directions. The left strand runs 5 to 3, and the right strand runs 3 to 5. The base sequences in each strand are complementary. An A in one strand pairs with a T in the other strand, and a C in one strand is paired with a G in the opposite strand. FIGURE 8.7 Nucleotides can be joined together to form chains caled polynucleotides. Polynucleotides are polar molecules with a 5 end (at the phosphate group) and a 3 end (at the sugar group). An RNA polynucleotide is shown at the left, and a DNA polynucleotide is shown at the right.
DNA contains many hydrogen bonds. Are hydrogen bonds stronger or weaker than covalent bonds? What are the consequences of this difference in strength?
State the properties of the WatsonCrick model of DNA in the following categories: a. number of polynucleotide chains b. polarity (running in same direction or opposite directions) c. bases on interior or exterior of molecule d. sugar/phosphate on interior or exterior of molecule e. which bases pair with which f. right- or left-handed helix
A typical bacterial DNA has a molar mass of 4 × 109 g m ol-1 . Approximately how many nucleotides does itcontain?
团 X .. Structure and Nomenclature How many molecules of water were formed from the complex of the giver structure? Give ONLY the NUMBER of water molecules. Name the first nucleotide from the 3' to 5' end. Use the correct/appropriate punctuations, spacing and letter case based on the nomenclature. NH, N. to OP-0 OP- -0 O OH NH: NH; -0- NH NH, OP-O- OH OH 0P- 0 0=P-0- OH OH 1:52 pm O Type here to search 4) ENG 昆 11/10/2021
If this nucleotide were found in a DNA polymer, the (X) group would be group would be A NH ₂ -0-CH₂, +] -0 B (X) (Y) and the (Y)
The Bacteria Escherichia coli DNA genome has a molecular mass of about 3.1 X 10 9 D. In your answers, show how you came up to each result?(a) How many base pairs does this bacterium contain? (b) How many full double-helical turns does this DNA contain? (c) How long is this DNA in micrometer?
Draw the complete structure of the trinucleotide deoxyribo-oligonucleotide that is complementary to 5'dTdGdA3'. Draw this completely, showing all atoms of all parts of the structure.
A circular, double-stranded DNA contains 2100 base pairs. The solution conditions are such that DNA has 10.5 bp/turn. (a) What is Lo for this DNA? (b) The DNA is found to have 12 left-handed superhelical turns. What is the superhelix density o?
A primitive eukaryote was discovered that displayed a uniquenucleic acid as its genetic material. Analysis revealed the followingobservations:(a) X-ray diffraction studies display a general pattern similarto DNA, but with somewhat different dimensions and moreirregularity. (b) A major hyperchromic shift is evident upon heating andmonitoring UV absorption at 260 nm.(c) Base-composition analysis reveals four bases in the followingproportions:Adenine = 8% Hypoxanthine = 18%Guanine = 37% Xanthine = 37%(d) About 75 percent of the sugars are deoxyribose, whereas25 percent are ribose.Attempt to solve the structure of this molecule by postulating amodel that is consistent with the foregoing observations.
Given the following eukaryotic DNA strand, transcribe and translate the DNA into a polypeptide using the 3’ – 5’ strand as the template. You may use drawings, diagrams, colours and annotations to describe how the DNA strand will be synthesized into a functional protein. (32) (KEY: The letters SBMD are “made up” nucleic acids that depict non-coding regions in the DNA, hypothetically S pairs with B and M pairs with D). 5’ - TATAAAAASSMSBMDATGSBDCCMBDBAATBSMDSTGTGTCCTMSBAG – 3’
There is a chemically synthesized DNA oligonucleotide is 5’–AUCG–3’. Pleasedraw the all-atom structure of this RNA strand, including that of the phosphategroup, the pentose (ribose), and the base for each nucleotide. The structure is inthe 5’→3’ direction