Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 9, Problem 12CONQ
What part(s) of a
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What part(s) of a nucleotide (namely, phosphate, sugar, and/or base) is/are found in the major and minor grooves of double-stranded DNA, and what part(s) is/are found in the DNA backbone? If a DNA-binding protein does not recognize a specific nucleotide sequence, do you expect that it binds tothe major groove, the minor groove, or the DNA backbone? Explain.
How many possible nucleotide sequences are there for a stretch of DNA that is N nucleotides long, if it is (a) single- stranded or (b) double-stranded?
What part(s) of a nucleotide (namely, phosphate, sugar, and/orbase) is(are) found in the major and minor grooves of doublestrandedDNA, and what part(s) is(are) found in the DNA backbone?If a DNA-binding protein does not recognize a specificnucleotide sequence, do you expect that it binds to the majorgroove, the minor groove, or the DNA backbone? Explain.
Chapter 9 Solutions
Genetics: Analysis and Principles
Ch. 9.1 - In the experiment of Avery, McLeod, and McCarty,...Ch. 9.1 - In the Hershey and Chase experiment involving T2...Ch. 9.2 - Going from simple to complex, which of the...Ch. 9.3 - Which of the following could be the components of...Ch. 9.3 - Prob. 2COMQCh. 9.4 - Prob. 1COMQCh. 9.5 - Prob. 1COMQCh. 9.5 - Prob. 2COMQCh. 9.6 - 1. Which of the following is not a feature of the...Ch. 9.6 - 2. A groove in the DNA refers to
a. the...
Ch. 9.6 - Prob. 3COMQCh. 9.7 - 1. A double-stranded region of RNA
a. forms a...Ch. 9 - 1. What is the meaning of the term genetic...Ch. 9 - Prob. 2CONQCh. 9 - 3. Look up the meaning of the word transformation...Ch. 9 - Prob. 4CONQCh. 9 - 5. Draw the structures of guanine, guanosine, and...Ch. 9 - Prob. 6CONQCh. 9 - 7. Describe how bases interact with each other in...Ch. 9 - Prob. 8CONQCh. 9 - 9. What is meant by the term DNA sequence?
Ch. 9 - Make a side-by-side drawing of two DNA helices:...Ch. 9 - 11. Discuss the differences in the structural...Ch. 9 - What part(s) of a nucleotide (namely, phosphate,...Ch. 9 - List the structural differences between DNA and...Ch. 9 - Draw the structure of deoxyribose and number the...Ch. 9 - Write a sequence of an RNA molecule that could...Ch. 9 - Compare the structural features of a...Ch. 9 - Which of the following DNA double helices would be...Ch. 9 - What structural feature allows DNA to store...Ch. 9 - Prob. 19CONQCh. 9 - Prob. 20CONQCh. 9 - Prob. 21CONQCh. 9 - 22. On further analysis of the DNA described in...Ch. 9 - Prob. 23CONQCh. 9 - Prob. 24CONQCh. 9 - In what ways are the structures of an helix in a...Ch. 9 - Prob. 26CONQCh. 9 - Prob. 27CONQCh. 9 - 28. What chemical group (phosphate group, hydroxyl...Ch. 9 - The base composition of an RNA virus was analyzed...Ch. 9 - Prob. 30CONQCh. 9 - Prob. 31CONQCh. 9 - Prob. 32CONQCh. 9 - Prob. 33CONQCh. 9 - As described in Chapter 15, the methylation of...Ch. 9 - 35. An RNA molecule has the following sequence:...Ch. 9 - 1. Genetic material acts as a blueprint for an...Ch. 9 - 2. With regard to the experiment described in...Ch. 9 - Prob. 3EQCh. 9 - Prob. 4EQCh. 9 - 5. With regard to Chargaff’s experiment described...Ch. 9 - 6. Gierer and Schramm exposed plant tissue to...Ch. 9 - 1. Try to propose structures for a genetic...Ch. 9 - Prob. 2QSDC
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- As you should recall, DNA, when not being actively transcribed, has a double helical structure. This portion of the DNA has had the two strands separated in preparation of transcribing for a needed protein. The following is one of the two complimentary strands of DNA: 3' - AACCAGTGGTATGGTGCGATGATCGATTCGAGGCTAAAATACGGATTCGTACGTAGGCACT - 5' Q: Based on written convention, i.e. the 3'-5' orientation, is this the coding strand or the template strand? ______________________________ Q: Assuming this strand extends from base #1 to #61 (going left to right), interpret the correctly transcribed mRNA and translated polypeptide for bases 24 - 47: mRNA: ___-___-___-___-___-___-___-___-___-___-___-___-___-___-___-___-___-___-___-___-___-___-___-___- polypeptide chain: ________--________--________--________--________--________--________--________arrow_forwardTRUE OR FALSE a) The 2 chains composing one double helix run in opposite directions; they are antiparallel (one is 5’->3’ and the other 3’->5’). b) DNA molecules can perform their function in replication and transcription as long as the hydrogen bonds between the bases remain intact.arrow_forwardInsulin is synthesized as preproinsulin, which has 81 amino acids. How many heterocyclic bases must be present in the informational DNA strand to code for preproinsulin (assuming no introns are present)?arrow_forward
- A duplex DNA oligonucleotide in which one of the strands has the sequence TAATACGACTCACTATAGGG has a melting temperature (tm) of 59 °C. If an RNA duplex oligonucleotide of identical sequence (substituting U for T) isconstructed, will its melting temperature be higher or lower?arrow_forwardWhich of the following DNAs is most likely to contain the recognition sequence for a homodimeric DNA binding protein? (Note that only one strand of the DNA is shown - you will find it helpful to write down the sequence and the sequence of the opposite strand to answer this question.) a) 5’- G A G C G A T C G C T C - 3’ b) 5’- G A G C G A G A G C G A - 3’ c) 5’- G A G C G A A G C G A G - 3’arrow_forwardIf you analyze a double-stranded DNA molecule and find that 15% of all the nucleotide bases are Adenines, you know that there must also be [ Select ] Thymines, [ Select ] Guanines, [ Select ] v Cytosines and [ Select ] Uracils. (Count each of the bases in any double stranded DNA molecule and calculate their percentages to find the simple key for this if you haven't seen it yet.)arrow_forward
- The base composition of one of the DNA chains of a DNA double helix contains 18 mol-%A, 35 mol-%T, 26 mol-%C, and 21 mol-%G (a) What is the base composition of the complementary DNA chain? (b) Is the total amount of purine bases equal to the total amount of pyrimidine bases for the DNA double helix?arrow_forwardWrite the sequence of the complementary DNA strand that pairs with each of the following DNA base sequences:(a) TTAGCC(b) AGACATarrow_forwardFor a linear B-DNA molecule of 50,000 kb, calculate (a) the contour length and (b) the length of the DNA as packaged in nucleosomes with linker histones present.arrow_forward
- If a 100 base-pair double-stranded DNA fragment has 40 cytosines, how many adenines does it contain?arrow_forwardDNA molecules consist of chemically linked sequences of the bases adenine, guanine, cytosine, and thymine, denoted A, G, C, and T. A sequence of three basesiscalleda codon. A base may appear more than once in a codon. a) How many different codons are there? b) The bases A and G are purines, while C and T are pyrimidines. How many codons are there whose first and third bases are purines and whose second base is a pyrimidine? c) How many codons consist of three different bases?arrow_forwardThe double helical structure of DNA is intrinsically unstable and easily dissociates to form two separate strands. Why? How does this affect the two key biological functions of chromosomal DNA? What would happen if the DNA helices were too stable?arrow_forward
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