Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 18.6, Problem 1CC
Would you expect the genome of the macaque (a monkey) to be more similar to the mouse genome or to the human genome? Explain.
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Given our knowledge of genome sizes in different organisms, would you predict that Homo sapiens or the two-toed salamander (Amphiuma means) has the larger genome?
Your advisor, a brilliant bioinformatician, has high regard for your intellect and industry. she suggests that you write a computer program that will identify the exons of protein- coding genes directly from the sequence of the human genome. In preparation for that task, you decide to write down a list of the features that might distinguish protein- coding sequences from intronic DNA and from other sequences in the genome. What features would you list?
A 2500 bp region of the human genome encodes two genes. One of the genes encodes a protein of 600 amino acids and the other gene encodes a protein of 280 amino acids. The mRNA sequences of the two genes do not contain any of the same nucleotide sequences (i.e. they do not overlap). How is this possible? Fully explain your answer.
Chapter 18 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 18.1 - Prob. 1CCCh. 18.2 - Prob. 1CCCh. 18.2 - Explain the advantage of the systems biology...Ch. 18.2 - Prob. 3CCCh. 18.3 - The best estimate is that the human genome...Ch. 18.3 - Prob. 2CCCh. 18.3 - Prob. 3CCCh. 18.4 - Discuss the characteristics of mammalian genomes...Ch. 18.4 - Which of the three mechanisms described in Figures...Ch. 18.4 - Prob. 3CC
Ch. 18.5 - Describe three examples of errors in cellular...Ch. 18.5 - Prob. 2CCCh. 18.5 - Prob. 3CCCh. 18.6 - Would you expect the genome of the macaque (a...Ch. 18.6 - Prob. 2CCCh. 18 - Prob. 1TYUCh. 18 - Prob. 2TYUCh. 18 - Two eukaryotic proteins have one domain in common...Ch. 18 - SCIENTIFIC INQUIRY The scientists mapping human...Ch. 18 - FOCUS ON EVOLUTION Genes important in the...Ch. 18 - FOCUS ON INFORMATION The continuity of life is...Ch. 18 - SYNTHESIZE YOUR KNOWLEDGE Insects have three...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- You are interested in finding out the function of a particular gene in the mouse genome. You have determined the nucleotide sequence of the gene, defined the portion that codes for its protein product, and searched the relevant database for similar sequences; however, neither the gene nor the encoded protein resembles anything previously described. What types of additional information about the gene and the encoded protein would you like to know in order to narrow down its function, and why?arrow_forwardWhat percentage of the DNA in the genome actually corresponds to genes? How much is actually protein-coding exons? What makes up the rest?arrow_forwardWhen the human genome sequence was finally completed, scientists were surprised to discover that the genome contains far fewer genes than expected. How many genes are present in the human genome? Scientists have also found that there are many more different kinds of proteins in human cells than there are different genes in the genome. How can this be explained?arrow_forward
- What proportion of exons are repeated sequences in the human genome? Is 38% surprising?arrow_forwardThe Japanese canopy plant (Paris japonica) has one of the largest of all eukaryotic genomes, with approximately 150 billion base pairs, about 50 times the size of the human genome. In contrast, the bladderwort Utricularia gibba has one of the smallest plant genomes, with only 82 million base pairs. What predictions can you make about the genomes of these two species?arrow_forwardThe human genome (3.4Gb) would be 2.3 metres long if stretched linearly. In not more than 200 words, explain how a genome of this size is fit into a cell if minuscule proportionsarrow_forward
- The human genome contains thousands of sequences known as small open reading frames, some of which encode proteins of about 30 amino acids. What is the minimum number of nucleotides required to encode such a protein?arrow_forwardIf you were to sequence a human genome today, how would the sequencing differ from that done during the Human Genome Project? Choose only the best answer. You would still use Sanger sequencing. You would still assemble the sequencing reads into a genome using bioinformatics. You still need to clone the DNA fragments prior to sequencing them. All three of the other statements are true.arrow_forward1b) In 1995, the first free-living organism to have its genome completely sequenced was Haemophilus influenzae, a bacteria. In the following year, the baker’s yeast Saccharomyces cerevisiae was the first eukaryote genome sequence to be fully sequenced. The complete sequencing of the human genome and related organisms represent one of the greatest scientific achievements in the history of mankind. Write an essay on the importance of genome studies in general.arrow_forward
- The human genome project was an international effort to completely map the all of the genes of humans. The first information on the human genome generated from this endeavor was published in 2000 and the full sequence was published in 2003. Since then, estimates of the rumber of genes in the human genome have steadily declined, and it is now though that there are about 20,500 genes in the human genome, but the exact number is yet to be determined. Since we have known the sequence of the human genome for almost two decades, why are scientists still not sure of the total number of genes contained within the human genome? In other words, why is it taking so long to determine the number of genes humans have?arrow_forwardWhy do scientists want to sequence the human genome?arrow_forwardIf “the human genome sequence” does not really exist, can you think of better ways in which we might represent the human genome? Propose some possibilities.arrow_forward
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