Nutrition
15th Edition
ISBN: 9781337906371
Author: Sizer, Frances Sienkiewicz., WHITNEY, Ellie
Publisher: Cengage Learning,
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Textbook Question
Chapter 6, Problem 4SC
Some segments of a protein strand coil, somewhat like a metal spring, because
a. amino acids at different places along the strand are chemically attracted to each other.
b. the protein strand has been denatured by acid.
c. the protein strand is missing one or more essential amino acids.
d. a coil structure allows access by enzymes for digestion.
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- Energy that drives translation is provided mainly by ______ . a. ATP c. GTP b. amino acids d. ribosomesarrow_forwardWhich of the following does cytosine pair with? a. guanine b. thymine c. adenine d. a pyrimidinearrow_forwardIf the genetic code used 4 bases at a time, how many amino acids could be encoded?arrow_forward
- Identify the features of tRNA that are important in decoding genetic information and converting it into protein language.arrow_forwardA certain mRNA strand has the following nucleotide sequence: 5AUGACGUAUAACUUU3 What is the anticodon for each codon? What is the amino acid sequence of the polypeptide? (Use Figure 13-5 to help answer this question.) Figure 13-5 The genetic code The genetic code specifies all possible combinations of the three bases that compose codons in mRNA. Of the 64 possible codons, 61 specify amino acids (see Figure 3-17 for an explanation of abbreviations). The codon AUG specifies the amino acid methionine and also signals the ribosome to initiate translation (start). Three codonsUAA, UGA, and UAGdo not specify amino acids; they terminate polypeptide synthesis (stop).arrow_forwardBriefly describe the function of the following in protein synthesis. a. rRNA b. tRNA c. mRNAarrow_forward
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