7. DNA and Chromosome Structure
DNA Structure
7. DNA and Chromosome Structure
DNA Structure - Video Tutorials & Practice Problems
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DNA Structure
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Problem
ProblemWhich of the following is not a component of a nucleotide?
A
Phosphate
B
Pentose Sugar
C
Starch sugar
D
Nitrogenous base
3
Problem
ProblemChargoff's rules states that which nucleotide pairings occurred?
A
A and G, C and T
B
T and U, C and G
C
G and U, C and A
D
A and T, C and G
4
Problem
ProblemWhich of the following is NOT true regarding the structure of the DNA double helix?
A
The two strands run parallel
B
The two strands are complementary
C
The nucleotides are held together via Phosphodiester bonds
D
There is a major groove and minor groove
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PRACTICE PROBLEMS AND ACTIVITIES (57)
- Give descriptions for the following terms: histone proteins
- How do we know that G pairs with C and that A pairs with T as complementary base pairs are formed?
- How was it determined that the structure of DNA is a double helix with the two strands held together by hydrog...
- Most center around DNA and RNA and their role of serving as the genetic material. Write a short essay that con...
- One strand of a fragment of duplex DNA has the sequence 5'-ATCGACCTGATC-3'.What term is used to describe the p...
- One strand of a fragment of duplex DNA has the sequence 5'-ATCGACCTGATC-3'.What term is used to describe the p...
- One strand of a fragment of duplex DNA has the sequence 5'-ATCGACCTGATC-3'.Is the bond in part (f) a covalent ...
- One strand of a fragment of duplex DNA has the sequence 5'-ATCGACCTGATC-3'.Identify the bond that joins one st...
- One strand of a fragment of duplex DNA has the sequence 5'-ATCGACCTGATC-3'.What enzymes catalyze the reaction ...
- One strand of a fragment of duplex DNA has the sequence 5'-ATCGACCTGATC-3'.Which chemical groups of nucleotide...
- One strand of a fragment of duplex DNA has the sequence 5'-ATCGACCTGATC-3'.Is the bond in part (b) a covalent ...
- One strand of a fragment of duplex DNA has the sequence 5'-ATCGACCTGATC-3'.What is the name of the bond that j...
- One strand of a fragment of duplex DNA has the sequence 5'-ATCGACCTGATC-3'.What is the sequence of the other s...
- The principles of complementary base pairing and antiparallel polarity of nucleic acid strands in a duplex are...
- For the following fragment of DNA, determine the number of hydrogen bonds and the number of phosphodiester bon...
- Figure 1.6 presents simplified depictions of nucleotides containing deoxyribose, a nucleotide base, and a phos...
- Figure 1.6 presents simplified depictions of nucleotides containing deoxyribose, a nucleotide base, and a phos...
- Figure 1.6 presents simplified depictions of nucleotides containing deoxyribose, a nucleotide base, and a phos...
- Figure 1.6 presents simplified depictions of nucleotides containing deoxyribose, a nucleotide base, and a phos...
- Consider the sequence 3'-ACGCTACGTC-5'.What is the total number of noncovalent bonds joining the nucleotides o...
- Consider the sequence 3'-ACGCTACGTC-5'.What is the total number of covalent bonds joining the nucleotides in e...
- Consider the sequence 3'-ACGCTACGTC-5'.What is the double-stranded sequence?
- Draw the chemical structure of the three components of a nucleotide, and then link the three together. What at...
- How are the carbon and nitrogen atoms of the sugars, purines, and pyrimidines numbered?
- Human adult hemoglobin is a tetramer containing two alpha (α) and two beta (β) polypeptide chains. The α gene ...
- Adenine may also be named 6-amino purine. How would you name the other four nitrogenous bases, using this alte...
- Draw the chemical structure of a dinucleotide composed of A and G. Opposite this structure, draw the dinucleot...
- Which of the following equations are true for the percentages of nucleotides in double-stranded DNA?(A)/(G) = ...
- Which of the following equations are true for the percentages of nucleotides in double-stranded DNA?(A)/(C) = ...
- Which of the following equations are true for the percentages of nucleotides in double-stranded DNA?(A)/(T) = ...
- Which of the following equations are true for the percentages of nucleotides in double-stranded DNA?(A + T)/(G...
- Which of the following equations are true for the percentages of nucleotides in double-stranded DNA?(A + G)/(C...
- What might Watson and Crick have concluded had Chargaff's data from a single source indicated the following? ...
- How do covalent bonds differ from hydrogen bonds? Define base complementarity.
- Which of the following equalities is not true for double-stranded DNA?(G + C) = (A + T)
- Which of the following equalities is not true for double-stranded DNA?(G + T) = (A + C)
- Which of the following equalities is not true for double-stranded DNA? (G + A) = (C + T)
- List the order in which the following proteins and enzymes are active in E. coli DNA replication: DNA pol I, S...
- Two viral genomes are sequenced, and the following percentages of nucleotides are identified: Genome 1: A = ...
- What is the chemical basis of molecular hybridization?
- What did the Watson–Crick model suggest about the replication of DNA?
- A genetics student was asked to draw the chemical structure of an adenine- and thymine-containing dinucleotide...
- One of the most common spontaneous lesions that occurs in DNA under physiological conditions is the hydrolysis...
- In some organisms, cytosine is methylated at carbon 5 of the pyrimidine ring after it is incorporated into DNA...
- Consider the drawing of a dinucleotide below. Suppose that the molecule was cleaved with the enzyme spleen p...
- Consider the drawing of a dinucleotide below. Is the arrow closest to the 5' or the 3' end?
- Consider the drawing of a dinucleotide below. Is it DNA or RNA?
- A primitive eukaryote was discovered that displayed a unique nucleic acid as its genetic material. Analysis pr...
- A primitive eukaryote was discovered that displayed a unique nucleic acid as its genetic material. Analysis pr...
- Newsdate: March 1, 2030. A unique creature has been discovered during exploration of outer space. Recently, it...
- Newsdate: March 1, 2030. A unique creature has been discovered during exploration of outer space. Recently, it...
- Newsdate: March 1, 2030. A unique creature has been discovered during exploration of outer space. Recently, it...
- A sufficient amount of a small DNA fragment is available for dideoxy sequencing. The fragment to be sequenced ...
- You are participating in a study group preparing for an upcoming genetics exam, and one member of the group pr...
- You are participating in a study group preparing for an upcoming genetics exam, and one member of the group pr...
- You are participating in a study group preparing for an upcoming genetics exam, and one member of the group pr...
- Electrophoresis is an extremely useful procedure when applied to analysis of nucleic acids as it can resolve m...