Genetics: From Genes to Genomes
6th Edition
ISBN: 9781259700903
Author: Leland Hartwell Dr., Michael L. Goldberg Professor Dr., Janice Fischer, Leroy Hood Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 1, Problem 11P
How can a scientist tell if a protein present in bacteria and a fruit fly protein have a common origin? How can a scientist determine whether a protein with a common origin in bacteria and a fruit fly function in a common pathway?
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How can a scientist determine whether a protein with a common origin in bacteria and a fruit fly function in a common pathway?
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Chapter 1 Solutions
Genetics: From Genes to Genomes
Ch. 1 - Choose the phrase from the right column that best...Ch. 1 - If one strand of a DNA molecule has the base...Ch. 1 - The size of one copy of the human genome is...Ch. 1 - Indicate whether each of the following words or...Ch. 1 - a. How many different DNA strands composed of 100...Ch. 1 - RNA shares with proteins the ability to fold into...Ch. 1 - The human protein lactate dehydrogenase shown in...Ch. 1 - a. Are the triplets in the genetic code table...Ch. 1 - Why do scientists think that all forms of life on...Ch. 1 - Why would a geneticist study a yeast cell or a...
Ch. 1 - How can a scientist tell if a protein present in...Ch. 1 - Figure 1.6 shows the amino acid sequences of parts...Ch. 1 - Why do scientists think that new genes arise by...Ch. 1 - Explain how the exon/intron structure of genes...Ch. 1 - Mutations in genes that change their pattern of...Ch. 1 - A single zebrafish gene function was inactivated...Ch. 1 - Different mutations in the WDR62 gene that...Ch. 1 - Researchers have successfully used gene therapy to...Ch. 1 - By the time this book is published, it will likely...
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- Why might there be multiple codons (genetic code triplets) that code for the same amino acid? Why can this redundancy be beneficial to an organism?arrow_forwardHow might a bacteriophage be used to treat bacterial infections in humans?arrow_forwardHow is molecule 3 Reverse transcriptase? Isn't that an enzyme and not a molecule nor product? The question is asking for a molecule or productarrow_forward
- Over several years, researchers learned more about proteins and the genes which code for them, the findings of which lead them to revise the original one gene-one enzyme hypothesis. Which of the following is NOT one of the findings which led to revision? a. many genes code can code for RNA molecules which never go on to produce a protein at all b. oftentimes, many genes are required to produce a single protein, where one gene produces one polypeptide and many polypeptides together make the single protein c. in addition to enzymes, gene products also include non-enzyme proteins like keratin and insulin d. a single gene produces one specific enzyme e. a single gene may code for multiple different (closely related) polypeptidesarrow_forwardWhat is an operon ? a. A series of genes controlled by the same operator b. A series of genes on the same mRNA molecule c. A series of genes that all have the same function d. A series of genes all regulated by the same repressorarrow_forwardA mutation in the DNA of an organism changes one base sequence in a protein-coding region from CAC to CAT. What is the effect of the mutation on the final protein? Explain how an organism might benefit from this effect on the final protein in terms of maintaining the organism’s stabilityarrow_forward
- Which enzyme links amino acids to the 3’ OH group of an RNA? (a) ribozyme (b) peptidyl transferase (c) DNA polymerase I (d) RNA polymerase II (e) amino-acyl tRNA synthetasearrow_forwardhow does eukaryotic ribosome find the mRNA to be translated? A. the sigma factor B. the shine-Dalgarno sequence C. the Inr sequence D. the 5'caparrow_forwardName and explain the roles of the protein factors that participate in the initiation phase of prokaryotic protein synthesisarrow_forward
- If the 16s RNA gene is present in all bacteria (it is!), why can it be used to distinguish different bacterial species?arrow_forwardThe two-dimensional structures of mRNA, tRNA, and rRNA are shown in the diagrams. Which of the following might be one contributing factor to the function of rRNA based on comparisons between the structures of the three molecules? A - rRNA molecules are sufficiently flexible because they contain more RNA loops. B - rRNA molecules are more reactive because they have longer chains of unmatched bases. C - rRNA molecules are sufficiently stable because the sequence of bases allows for more internal hydrogen bonds. D - rRNA molecules are more rigid because they have a more regular sequence of bases than other RNA molecules.arrow_forwardFrom the perspective of a bacterial cell, describe two ways in which a mutation can be harmful and two ways a mutation can be beneficialarrow_forward
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