EBK BIOLOGY
11th Edition
ISBN: 8220106820636
Author: Martin
Publisher: CENGAGE L
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Chapter 14.3, Problem 9LO
Summary Introduction
To explain: The way in which a gene in a multicellular organism may produce different products in different types of cells.
Introduction: In eukaryotes, transcription occurs in the nucleus, and pre-mRNA is synthesized. This pre-mRNA is further modified before translation in the cytoplasm. This is known as RNA processing. It includes the modification of mRNA ends and RNA splicing. During RNA splicing, the non-coding regions, that is introns, are excised from the RNA molecules, and the coding regions are joined.
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Explain how a gene in a multicellular organism may produce differentproducts in different types of cells.
Many aspects of gene function can be nicely explained with the one-gene-one-enzyme hypothesis, which states that a gene controls the production of an enzyme. Which of the following findings about gene expression, though, requires an expansion of this simple concept?
Choose an answer below:
Non-enzyme proteins are made from genes too.
Some genes code for RNA molecules only.
Enzymes composed of different polypeptides are coded for by more than one gene.
a and c, but not b
a, b, and c
Gene Expression:
14) Look at the diagram:
a) For each of the molecules in the diagram, identify what type of molecule
they are, and label their ends (3',5',N,C).
b) For each arrow, name the process and identify the major enzymes
involved.
c) Where do each of these activities take place in a bacterial cell? In a
eukaryotic cell? Draw a picture if it helps you explain it.
Chapter 14 Solutions
EBK BIOLOGY
Ch. 14.1 - Explain why bacterial and eukaryotic cells have...Ch. 14.1 - Prob. 1CCh. 14.1 - Prob. 2CCh. 14.2 - Prob. 2LOCh. 14.2 - Distinguish among inducible, repressible, and...Ch. 14.2 - Differentiate between positive and negative...Ch. 14.2 - Prob. 5LOCh. 14.2 - Prob. 1CCh. 14.2 - What structural features does the trp operon share...Ch. 14.2 - Prob. 3C
Ch. 14.2 - Prob. 4CCh. 14.3 - Prob. 6LOCh. 14.3 - Give examples of some of the ways eukaryotic...Ch. 14.3 - Prob. 8LOCh. 14.3 - Prob. 9LOCh. 14.3 - Prob. 10LOCh. 14.3 - Prob. 1CCh. 14.3 - Prob. 2CCh. 14.3 - Prob. 3CCh. 14.3 - Prob. 4CCh. 14.3 - Prob. 5CCh. 14 - The regulation of most bacterial genes occurs at...Ch. 14 - Prob. 2TYUCh. 14 - Prob. 3TYUCh. 14 - Prob. 4TYUCh. 14 - Inactive genes tend to be found in (a) highly...Ch. 14 - Prob. 6TYUCh. 14 - Which of the following is characteristic of genes...Ch. 14 - Through alternative splicing, eukaryotes (a)...Ch. 14 - A mutation that inactivates the repressor gene of...Ch. 14 - Which of the following is an example of positive...Ch. 14 - Prob. 11TYUCh. 14 - PREDICT Compare the types of bacterial genes...Ch. 14 - INTERPRET DATA Develop a simple hypothesis that...Ch. 14 - Prob. 14TYUCh. 14 - Prob. 15TYUCh. 14 - EVOLUTION LINK Suggest why evolution resulted in...Ch. 14 - Prob. 17TYU
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- Many aspects of gene function can be nicely explained with the one- gene-one-enzyme hypothesis, which states that a gene controls the production of an enzyme. Which of the following findings about gene expression, though, requires an expansion of this simple concept? Non-enzyme proteins are made from genes too. Some genes code for RNA molecules only. Enzymes composed of different polypeptides are coded for by more than one gene. a and c, but not b a, b, and carrow_forwardBriefly explain how gene expression occurs at the molecular level.arrow_forwardDescribe three features that control whether a gene is transcribed.arrow_forward
- Describe how a genome is mapped.arrow_forwardDefine Genome, Transcriptome, and Proteome. Include examples of each one and a very detailed description on their importance and functionality.arrow_forwardAll the cells of one organism share the same genome. However, during development, some cells develop into skin cells while others develop into muscle cells. Briefly explain how the same genetic instructions can result in two different cell types in the same organism.arrow_forward
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QCE Biology: Introduction to Gene Expression; Author: Atomi;https://www.youtube.com/watch?v=a7hydUtCIJk;License: Standard YouTube License, CC-BY