Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Chapter 10.4, Problem 1GR
Summary Introduction
To explain: Whether the amino acid tyrosine is an essential amino acid in individuals suffering with PKU..
Introduction: Phenylketonuria (PKU) is a genetic disorder that is inherited from one generation into the next. PKU is caused because of the mutation in the gene that codes for the enzyme required for
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Individuals with phenylketonuria cannot convert phenylalanine to tyrosine. Why don’t these individuals exhibit a deficiency of tyrosine?
Vasopressin & oxytocin are hormones produced by the posterior pituitary gland. Both hormones are polypeptides of only 9 amino acids. The sequence of amino acids for vasopressin is: cysteine, tyrosine, phenylalanine, glutamate, asparagine, cysteine, proline, arginine, & glycine. You should have the sequence of amino acid for oxytocin in part II. Referring to your codon chart, explain how one hormone could have been originally derived from small accidental changes that occurred in the genetic code for the other
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beta-MSH (human): Ala-Glu-Lys-Lys-Asp-Glu-Gly-Pro-Tyr-Arg-Met-Glu-His-Phe-Arg-Trp-Gly-Ser-Pro-Pro-Lys-Asp
beta-MSH (porcine): Asp-Glu-Gly-Pro-Tyr-Lys-Met-Glu-His-Phe-Arg-Trp-Gly-Ser-Pro-Pro-Lys-Asp
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Chapter 10 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 10.4 - Prob. 1GRCh. 10.4 - Prob. 2GRCh. 10.7 - Prob. 1EGCh. 10.7 - Prob. 2EGCh. 10 - A couple was referred for genetic counseling...Ch. 10 - A couple was referred for genetic counseling...Ch. 10 - A couple was referred for genetic counseling...Ch. 10 - Many individuals with metabolic diseases are...Ch. 10 - Prob. 2QPCh. 10 - Enzymes have all the following characteristics...
Ch. 10 - Questions 4 through 6 refer to the following...Ch. 10 - Questions 4 through 6 refer to the following...Ch. 10 - Prob. 6QPCh. 10 - Prob. 7QPCh. 10 - Prob. 8QPCh. 10 - a. Compounds A, B, C, and D are known to be...Ch. 10 - b. Compounds A, B, C, and D are known to be...Ch. 10 - a. If an individual who is homozygous for the...Ch. 10 - Prob. 12QPCh. 10 - Suppose that in the formation of phenylalanine...Ch. 10 - If phenylalanine was not an essential amino acid,...Ch. 10 - Phenylketonuria and alkaptonuria are both...Ch. 10 - The normal enzyme required for converting sugars...Ch. 10 - Knowing that individuals who are homozygous for...Ch. 10 - Prob. 18QPCh. 10 - A person was found to have very low levels of...Ch. 10 - If an extra nucleotide is inserted in the first...Ch. 10 - Transcriptional regulators are proteins that bind...Ch. 10 - Prob. 22QPCh. 10 - Prob. 23QP
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- What is a glucogenic amino acid? Give three examples.arrow_forwardWhat are the two essential amino acids in the active site of chymotrypsin?arrow_forwardIndividuals with phenylketonuria (PKU) are sensitive to phenylalanine in their diet. Why is a warning on foods containing aspartame (L-aspartyl-l-phenylalanine methyl ester) of concern to individuals with PKU?arrow_forward
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