Genetic Analysis: An Integrated Approach (3rd Edition)
3rd Edition
ISBN: 9780134605173
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Chapter 1, Problem 26P
Four
| A | G | T | U | C | |
| Sample 1 | 22% | 28% | 22% | 0 | 28% |
| Sample 2 | 30% | 30% | 0 | 20% | 20% |
| Sample 3 | 18% | 32% | 0 | 18% | 32% |
| Sample 4 | 29% | 29% | 21% | 0 | 21% |
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A small segment of DNA has the following
sequence:
А -А -Т-С-Т -С -G-T-А
The sequence of the complementary DNA
strand is
а. G - G - C-т -С -т-А-С -G
b.T -T-A - G - A - G - C - A - T
с.А - А - Т- С -т-с-G-Т - А
d. C - C - G - A - G - A - T - G - C
A DNA sample contains 21% adenine. What is the complete percentage base composition?
You are provided with a sample of aardvark DNA. As part of your investigation of this DNA, you transcribe mRNA from the DNA and purify it. You then separate the two strands of the DNA and analyze the base composition of each strand and of the mRNA transcripts. You obtain the following results: A G C T UDNA strand #1 19.1 26.0 31.0 23.9 0DNA strand #1 24.2 30.8 25.7 19.3 0mRNA 19.0 25.9 30.8 0 24.3Which strand of the DNA is the “sense” strand that serves as the template for mRNA synthesis?
Chapter 1 Solutions
Genetic Analysis: An Integrated Approach (3rd Edition)
Ch. 1 - 1. Genetics affects many aspects of our lives....Ch. 1 - 2. How do you think the determination that DNA is...Ch. 1 - 3. A commentator once described genetics as “the...Ch. 1 - All life shares DNA as the hereditary material....Ch. 1 - Define the terms allele, chromosome, and gene and...Ch. 1 - 6. Define the terms genotype and phenotype, and...Ch. 1 - 7. Define natural selection, and describe how...Ch. 1 - Describe the modern synthesis of evolution, and...Ch. 1 - What are the four processes of evolution? Briefly...Ch. 1 - Define each of the following terms: a....
Ch. 1 - 11. Compare and contrast the genome, the proteome,...Ch. 1 - With respect to transcription describe the...Ch. 1 - Plant agriculture and animal domestication...Ch. 1 - Briefly describe the contribution each of the...Ch. 1 - If thymine makes up 21% of the DNA nucleotides in...Ch. 1 - What reactive chemical groups are found at the 5...Ch. 1 - Identify two differences in chemical composition...Ch. 1 - What is the central dogma of molecular biology?...Ch. 1 - A portion of a polypeptide contains the amino...Ch. 1 - The following segment of DNA is the template...Ch. 1 - 23. Fill in the missing nucleotides (so there are...Ch. 1 - 24. Suppose a genotype for a protein-producing...Ch. 1 - Prob. 25PCh. 1 - 26. Four nucleic acid samples are analyzed to...Ch. 1 - 27. What is meant by the term homology? How is...Ch. 1 - 28. If one is constructing a phylogeny of reptiles...Ch. 1 - 29. Consider the following segment of...Ch. 1 - 30. Ethical and social issues have become a large...Ch. 1 - 31. In certain cases, genetic testing can identify...Ch. 1 - 32. What information presented in this chapter and...Ch. 1 - 33. It is common to study the biology and genetics...
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- Which of the following combinations are true of the nucleotide composition of a sample of DNA? SELECT ALL ANSWERS THAT APPLY* C = A and G = T A +T = G+ C AxC = G x T A=T and C = G A-T= G-C A+C = G+ T DNA is made up of deoxyribose sugar, phosphate group and a nitrogen base. DNA is the genetic material that determines the traits of living things and is O O Oarrow_forwardWhich of the following are possible base compositions for double- stranded DNA? O A=30% G=20% C=20% T=30% U=0% O A=20% G=35% C=35% T=20% U=20% O A=30% G=20% C=35% T=15% U=0% O All are correctarrow_forwardGiven the sequence of DNA strand 1, determine the correct sequence for DNA strand 2 based on nucleotide base-pairing rules. DNA strand 1: 5’ A T G A G A C T G A T T 3’ DNA strand 2:arrow_forward
- In order to determine the purity of a DNA sample. spectrophotometry can be carried out at calculated, and a number between to measure DNA, and to measure protein. The ratio is then indicates higher purity. 280 nm; 260 nm; A280/A260; 0.5-1 260 nm; 280 nm; A260/A280; 0.5-1 260 nm; 280 nm; A280/A260; 1.5-2 260 nm; 280 nm; A260/A280; 1.5-2arrow_forwardType the matching bases in each DNA sequence. G A T A G C T A G Garrow_forwardReview the table below. Nucleic acid from 4 different samples were analyzed to determine the amounts of nitrogenous bases in each. The amount is shown as a percentage. A G T U C Sample 1 22% 28% 22% 28% Sample 2 30% 30% 20% 20% Sample 3 18% 32% 18% 32% Sample 4 29% 29% 21% 21% What observations can you make from these data? Suggest at least two different observations. What conclusions can be supported by these observations? • Suggest one experiment that you could conduct to test or further investigate one of your conclusions from part b.arrow_forward
- Below is the 5’–3’ strand of a double-stranded DNA molecule with the following nucleotide sequences (all belong to an exon):5’ C C T A T G C A G T G G C C A T A T T C C A A A G C A T A G C 3’1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 311. If the above DNA strand is the coding (sense) strand and the DNA molecule is expressed to produce a protein product, however prior to expression, mutation took place where,a. the 15th base was replaced by Guanine. Is the amino acid sequence of the synthesized polypeptide chain altered, as compared when there was no mutation? Specify type of mutation in relation to protein function. Is the base substitution a transition or transversion mutation?b. the 18th base was replaced by Guanine. Is there an effect in the structure and function of the synthesized protein, as compared when there was no mutation? Specify type of mutation in relation to protein function. Is the base substitution a transition or transversion…arrow_forwardBelow is the 5’–3’ strand of a double-stranded DNA molecule with the following nucleotide sequences (all belong to an exon):5’ C C T A T G C A G T G G C C A T A T T C C A A A G C A T A G C 3’1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 2. If the above DNA strand is the template (antisense) strand and the DNA molecule is expressed to produce a protein product, however prior to expression, mutation took place where,a. the 11th base was replaced by Cytosine. Is the amino acid sequence of the synthesized polypeptide chain altered, as compared when there was no mutation? Specify type of mutation in relation to protein function. Is the base substitution a transition or transversion mutation?b. the 2nd base was deleted. Is there an effect in the structure and function of the synthesized protein? Specify type of mutation in relation to protein function. What type of mutation is demonstrated here?c. Thymine is inserted between the 21st and 22nd gene. Is…arrow_forwardThe following diagram shows a DNA palindrome. Supply the missing bases and use the circled base as your answer. A A G ОА OG от ос Aarrow_forward
- The chromatogram shows fluorescent peak data from a dye-terminating nucleotide-sequencing reaction. The peaks are shown with shortest fragment on the left to longer fragments on the right. T •C A Select the DNA sequence that matches the data. 5-ТАТAСТТАСGAAGT-3' 5'-GTCCTACGGACGCG–3' 5'-ATATGAATGCTTCA–3' 5'-TGAAGCATTCATAT–3' 5-АСТТCGTAAGTATA-3'arrow_forwardChoose the lettee of the correct answer: The following is the sequence on one of a DNA molecule A A T G C C A G T G G T 1. If this strand is replicated, which of the following is the complementary strand that is produces? A. T C G T C C G T C T A G B. A G C A G G C A G G G T C. T T A C G G T C A C C A D. U C G U C C U C U A G A 2. If transcribed into an mRNA what would be the resulting strand?A. U U A C G G U C A C C A B. A G C A G G A G A T C C. A G C A G G C A G A U G D. T C G T C C G T C T A G 3. During translation, the tRNA sequence of nucleotidea arranged linearly is ___ A. T C C T C C C T C T A G B. A A U G C C A G U G G U C. A G C A G G C A G A U O D. U C G U C C G U C U A G Each combinations of nitrogen bases on the mRNA molecule is a codon, which is a three letter code for a specific amino acid. The table shows the mRNA codon for each amino acid. Use the genetic code table to answer the questions. 4. The…arrow_forwardUse Chargaff's Rule to determine the percentage of base T in a sample of DNA that is 28% A and 22% C. O 22% T 28% T 44% 50% 56%arrow_forward
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