TRUE OR FALSE a) In a dsDNA, a pyrimidine in one chain is always paired with a purine on the other chain because of this arrangement, the molecule is 2nm wide along its entire length. Example is A with G or C with T. b) The helical turns of the DNA does not only provide spaces for binding with regulatory proteins but they cause the molecule to resemble a spiral staircase.

TRUE OR FALSE a) In a dsDNA, a pyrimidine in one chain is always paired with a purine on the other chain because of this arrangement, the molecule is 2nm wide along its entire length. Example is A with G or C with T. b) The helical turns of the DNA does not only provide spaces for binding with regulatory proteins but they cause the molecule to resemble a spiral staircase.

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 12QP: DNA contains many hydrogen bonds. Are hydrogen bonds stronger or weaker than covalent bonds? What...

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TRUE or FALSE a) The deoxyribose connects to N9 of guanine. b) In a dsDNA, a pyrimidine in one chain is always paired with a purine on the other chain because of this arrangement, the molecule is 2nm wide along its entire length. Example is A with G or C with T.
The Bacteria Escherichia coli DNA genome has a molecular mass of about 3.1 X 109 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 mm?
True or False 1. In a dsDNA, a pyrimidine in one chain is always paired with a purine on the other chain because of this arrangement, the molecule is 2nm wide along its entire length. Example is A with G or C with T.
Which of the following (A through E ) would you expect to find in a nucleotide chain constructed for Sanger sequencing?
Assuming human cells have on average 1000 mitochondria, what percentage by weight of the total DNAisolated from human tissue would be mtDNA?
What two basepair changes can occur when G tautomerizes to the enol form? Recall that the tautomerization can occur when G is a free dNTP prior to DNA replication or when G is incorporated into dsDNA just before DNA replication. Draw both of these bp changes out. Are they transitions or transversions?
. In analyzing the number of different bases in a DNAsample, which result would be consistent with thebase-pairing rules?(A) A = G(B) A + G = C + T(C) A + T = G + C(D) A = C
Assume that an error is made: adenine and guanine are matched as base pairs. What would be the impact on the structure of DNA? What would be the structural impact if adenine and cytosine were paired?
A duplex DNA molecule contains a random sequence of the four nucleotides with equal proportions of each. What is the average spacing between consecutive occurrences of the sequence 5'-ATGC-3'? Between consecutive occurrences of the sequence 5'-TACGGC-3'?
Let’s assume the linker region of DNA averages 54 bp in length. How many molecules of H2A would you expect to find in a DNA sample that is 46,000 bp in length?
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?
In your own words, explain why 5’-CG-3’ dinucleotides are much rarer than we expect them to be in our genome.