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 14.3, Problem 1CC
Given that there are about 20,000 human genes, how can human cells make 75,000-100,000 different proteins?
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Chapter 14 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 14.1 - MAKE CONNECTIONS In a research article about...Ch. 14.1 - What polypeptide product would you expect from a...Ch. 14.1 - DRAW IT The template strand of a gene contains the...Ch. 14.2 - What is a promoter? Is it located at the upstream...Ch. 14.2 - What enables RNA polymerase to start transcribing...Ch. 14.2 - WHAT IF? Suppose X-rays caused a sequence change...Ch. 14.3 - Given that there are about 20,000 human genes, how...Ch. 14.3 - How is RNA splicing similar to how you would watch...Ch. 14.3 - WHAT IF? What would be the effect of treating...Ch. 14.4 - What two processes ensure that the correct amino...
Ch. 14.4 - Discuss the ways in which rRNA structure likely...Ch. 14.4 - Describe how a polypeptide to be secreted is...Ch. 14.4 - WHAT IF? DRAW IT Draw a tRNA with the anticodon...Ch. 14.5 - What happens when one nucleotide pair is lost from...Ch. 14.5 - Prob. 2CCCh. 14.5 - WHAT IF? DRAW IT The template strand of a gene...Ch. 14 - In eukaryotic cells, transcription cannot begin...Ch. 14 - Prob. 2TYUCh. 14 - The anticodon of a particular tRNA molecule is A....Ch. 14 - Prob. 4TYUCh. 14 - Which component is not directly involved in...Ch. 14 - Prob. 6TYUCh. 14 - Prob. 7TYUCh. 14 - Prob. 8TYUCh. 14 - Fill in the following table: Type of RNA Functions...Ch. 14 - SCIENTIFIC INQUIRY Knowing that the genetic code...Ch. 14 - Prob. 11TYUCh. 14 - FOCUS ON INFORMATION Evolution accounts for the...Ch. 14 - SYNTHESIZE YOUR KNOWLEDGE Some mutations result in...
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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
- How many kilobases of the DNA strand below will code for the protein product?arrow_forwardHow many nucleotides does the human genome contain?arrow_forwardConsider a portion of a gene in a cell with the sequence TTTTT. Which of the following bases would you find in the complementary RNA strand, and where in the (eukaryotic) cell would this RNA be synthesized? A) A-A-A-A-A; ribosome B) U-U-U-U-U; ribosome C) A-A-A-A-A; nucleus D) U-U-U-U-U; nucleusarrow_forward
- If a bacterial protein is 3,300 amino acids long, how many nucleotidepairs long is the gene sequence that codes for it?arrow_forward2)Which of the following is a correct representation of a segment of DNA: a) I b) I and III c) IV and V d) V and I 3)Consider the following sequence: 5' - AUGGCUACAGAUAGCUGGGGCUGAAAAAAAAAAAAAAA..3'Translated, the corresponding protein contains how many amino acids: a) 6 b) 7 c) 8 d) 13arrow_forwardIf you know that the number of nitrogenous bases in DNA = 4 and the number of amino acids = 20, then the number of possible genetic codes for these acids? choose the correct answer . A)20 В)24 С)60 D)64arrow_forward
- 3)Which of the following statements are true? Choose all that apply a)There are multiple codons possible for nearly all amino acids b)Each stop codon also codes for an amino acid c)Each tRNA will base pair with only one codon d)The start codon also codes for an amino acid e)Each codon in mRNA codes for exactly one amino acid f)Each codon in tRNA codes for exactly one amino acid g)Each anticodon in tRNA pairs with exactly one codon h)Each tRNA carries exactly one type of amino acidarrow_forward1) How many bases are found (on one of the strands) in a single twist of a DNA helix: a) 3.4 b) 10 c) 2 d) 0.34 1)Consider the following sequence: 5' - AUGGCUACAGAUAGCUGGGGCUGAAAAAAAAAAAAAAA..3'Translated, the corresponding protein contains how many amino acids: a) 6 b) 7 c) 8 d) 13arrow_forwardE. How many nucleotides would be required to generate a polypeptide that is 15 amino acids long? This requires knowing how many nucleotides of DNA code for one amino acid. F. Assuming that there are between 20,000-25,000 genes in the human genome, do you think there are 1) fewer, 2) approximately the same number, or 3) more proteins in the human genome? Explain your answer.arrow_forward
- How many different proteins, each with a unique amino acid sequence, can be constructed that have a length of five amino acids?arrow_forwardIf the GC content of a DNA molecule is 48%, what are the percentages of the 4 bases A, T, C, and G- in this molecule? O A= 24%, C = 26%, G = 26%, T = 24% O A= 24%, C = 24%, G = 26%, T = 26% O A = 26%, C = 24%, G = 24%, T = 26% O A= 52%, C = 48%, G = 48%, T = 52% O A= 52%, C = 48%, G = 52%, T = 48%arrow_forwardXeroderma pimentos is an inherited disorder characterized by rapid formation of many skin sores that develop into cancers. All forms of radiation trigger these symptoms, including fluorescent light, which contains UV light in the range of 320 to 400 nm. In most affected individuals, at least one of nine particular proteins is missing or defective. What is the collective function of these proteins?arrow_forward
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