2, Please answer the following questions pertaining to nucleotides. A. (You can answer part (A) and part (C) together if it is more convenient to do so). DRAW condensed structural (or line-angle) formulas for the four nucleotides of DNA (A, C, G, T), and identify each with their actual names (not just A, C, G, or T B. What is the definition of a HETEROCYLIC compound? Which of these four nucleotides are heterocyclic, and which are not? C. In forming base pairs, A always pairs with T, and C always pairs with G, because these pairings exhibit optimal hydrogen bonding. Please DRAW each base pair with chemical structures (A with T, C with G), showing the precise hydrogen bonding in each with dotted lines.

2, Please answer the following questions pertaining to nucleotides. A. (You can answer part (A) and part (C) together if it is more convenient to do so). DRAW condensed structural (or line-angle) formulas for the four nucleotides of DNA (A, C, G, T), and identify each with their actual names (not just A, C, G, or T B. What is the definition of a HETEROCYLIC compound? Which of these four nucleotides are heterocyclic, and which are not? C. In forming base pairs, A always pairs with T, and C always pairs with G, because these pairings exhibit optimal hydrogen bonding. Please DRAW each base pair with chemical structures (A with T, C with G), showing the precise hydrogen bonding in each with dotted lines.

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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(You can answer part (a) and part (c) together if it is more convenient to do so). DRAW condensed structural (or line-angle) formulas for the four nucleotides of DNA (A, C, G, T), and identify each with their actual names (not just A, C, G, or T).
1). What is the concentration of a solution of DNA with an OD260 of 0.3? ----I got 15 micrograms/mL (50 x 0.3) 2). How many microliters of this solution of DNA would you need if you wanted 1.5 micrograms?
Identify the correct name or abbreviation for the given nucleoside or nucleotide. guanosine ADP dADP dGDP GDP Identify the correct name or abbreviation for the given nucleoside or nucleotide. GDP dADP ADP O deoxyadenosine dGDP OMP O || -O-P-O-P-O. fot O™ tt -O-P-O- O™ ܘ ܐ ܘ ܐ OIPIO N OH OH OH N H₂N N ΝΗ N NH₂
N. NH 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. O=P-OCH, N. `NH, HN он O= P- OCH, NH, 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? N OH N. O= P-OCH, OH OH
DNA structure depends on base pairing of its four nucleotides, A, C, T, and G. Nucleotide A pairs with T, and nucleotide C pairs with G. This forms a four-letter DNA “alphabet." Because DNA codes for amino acids in sets of three nucleotides, there are 4 cubed (4'), or 64, possible combinations, coding for 20 different amino acids. What is the best explanation for why there is no selective advantage for DNA to have five nucleotides (e.g., A, C, T, G, and E) with C pairing with either G or functionally equivalent E? It would be impossible to form the DNA molecule, because it must have an equal number of Cs and Gs. Because G and E have the same role, there would still be four functional letters of the alphabet. Replication would be inaccurate because sometimes C would bond with G and sometimes C would bond with E. There would be a five-letter alphabet with 125 combinations, which is too numerous. It is impossible because there are not five known nucleotides in the cell.
In one paragraph, using your own words, describe the structure of DNA. Be sure to include the following terms: nucleotide, phosphate, adenine, cytosine, guanine, and thymine.
The figure shows that the average distance between base pairs measured parallel to the axis of a DNA molecule is 3.4 Å. The average molar mass of a pair of nucleotides is 650 g•mol-1. Estimate the length in cm of a DNA molecule of molar mass 5.1x109 4.0 .26 g•mol-1. cm Roughly how many base pairs are contained in this molecule? [4.0 784615 x base pairs CG G C OH TA Thymine Adenine H. H. OH CH2 N-H.......O CH3 H H N……·H–N HLH TA OH 0-P H2C CG G C H. CH2 Guanine H OH Cytosine ... H-N TA AT H' N.....H-N HLH N-H.......O H2C OH H -o. -P3D0 TA 0- OH H. -CH2 (b) The most common structure of DNA, which is a right-handed double helix. The two strands are held together by hydrogen bonds (a) Base-pair formation between adenine (A) and thymine (T) and between cytosine (C) and guanine (G). and other intermolecular forces.
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?
To answer the prompts below, draw on a piece of paper or your tablet the chemical structure of the trinucleotide 5' - TCA 3', labeling the 5' and 3' ends. Opposite this structure, - draw the complementary trinucleotide to make a double- stranded DNA molecule. A. What is the complementary trinucleotide sequence from 5' to 3' (enter answer as nucleotides only with no spaces)? B. How many non-covalent hydrogen bonds stabilize this double-stranded DNA structure? C. How many covalent phosphate linkages stabilize this double-stranded DNA structure?
The A and G compositions (mole percent) of one of the strands of a duplex DNA is A = 27 and G = 30. (a) What would be the T and C compositions of the complementary strand? (b) What can be said about the A and G compositions of its complementary strand?
DNA sequences have an alphabet {A,C,G,T}. How many DNA sequences of length n are there? (Two DNA sequences are the same if one is the reverse of the other).
The composition (in molefraction units) of one of the strands of a double-helical DNA molecule is [A] = 0.30 and [G] =0.24. (a) What can you say about [T] and [C] for the same strand? (b) What can you say about [A], [G], [T], and [C] of the complementary strand?