Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 12, Problem 1COQ
Summary Introduction
To explain: The reason for presence of both protein and RNA components in some complexes like spliceosomes and ribosomes
Introduction: The gene expression is a highly complex but coordinated process. The gene expression involves splicing mechanism in the eukaryotes. The splicing of pre-mRNA and translation of protein from mRNA needs complexes that can facilitate these complex processes.
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Why is it an advantage for eukaryotic cells to have different compartments (aka organelles) in the cell (separated
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The biological process shown in Figure 1 occurs in a eukaryotic cell’s nucleus.
d) Name X and state how it functions in a protein synthesis.
e) Give three differences between molecules X and Y.
What is the difference between chromatin and nucleosomes?
Chapter 12 Solutions
Biology
Ch. 12.1 - What disease would result if a person inherited...Ch. 12.1 - Prob. 2CCCh. 12.1 - What is the direction of flow of genetic...Ch. 12.2 - Core Skill: Connections Look back at the role of...Ch. 12.3 - Prob. 1CCCh. 12.4 - Prob. 1CCCh. 12.4 - Prob. 1EQCh. 12.4 - Prob. 2EQCh. 12.4 - Prob. 3EQCh. 12.5 - Core Skill: Connections Look back at Figure 6.3,...
Ch. 12.5 - Prob. 2CSCh. 12.6 - Prob. 1CCCh. 12 - Which of the following best represents the central...Ch. 12 - A mutation prevents a gene from being transcribed...Ch. 12 - Prob. 3TYCh. 12 - Prob. 4TYCh. 12 - If a eukaryotic mRNA failed to have a cap attached...Ch. 12 - Prob. 6TYCh. 12 - Prob. 7TYCh. 12 - During the initiation of translation, the first...Ch. 12 - Prob. 9TYCh. 12 - Prob. 10TYCh. 12 - Prob. 1CQCh. 12 - Prob. 2CQCh. 12 - Prob. 3CQCh. 12 - Prob. 1COQCh. 12 - Prob. 2COQ
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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
- The endoplasmic reticulum and Golgi apparatus are both membrane-bound organelles found in eukaryotic cells. Which statement describes one way in which the endoplasmic reticulum and the Golgi apparatus work together? The Golgi apparatus assembles mRNA, and the endoplasmic reticulum translates them into proteins. The endoplasmic reticulum assembles mRNA molecules, and the Golgi apparatus translates them into proteins. The Golgi apparatus assembles proteins, and the endoplasmic reticulum modifies and packages them. The endoplasmic reticulum assembles proteins and the Golgi apparatus modifies and packages them.arrow_forwardConsider Molecule X in the sketch below: protein- ribosome X What is the name of X? Your answer should be one word, or a short two- or three-word phrase. Spelling counts. Note: if there is more than one possible answer, separate each answer with a comma. 0arrow_forwardConsider Molecule X, which is found in all living cells. Each form of this molecule is keyed to the genetic code for a particular amino acid. When activated, the amino acid is covalently bonded to one end of this molecule, and it carries the amino acid to a ribosome to take part in protein assembly. What is the name of X? Your answer should be one word, or a short two- or three-word phrase. Spelling counts. Note: if there is more than one possible answer, separate each answer with a comma. 0arrow_forward
- In a eukaryotic cell, what organelle is involved in translation?arrow_forwardWhich term among A-D is not correctly matched with its definition? A) O Slime layer: loose assemblage of polysaccharide material external to the cell envelope B) O Polysome or polyribosome formation: multiple ribosomes binding to a messenger RNA transcript C) O Replisome: two of these complexes working in opposite directions are needed to copy the bacterial chromosome D) O Nucleoid: cytoplasmic area containing the bacterial chromosome E) OA-D are all correctly matchedarrow_forwardWhat are nucleosomes ?arrow_forward
- Name the two places in the eukaryotic cell where the cell component Ribosome, mRNA, tRHA and rRNA are found?arrow_forwardA main function of the cell membrane is to be very selective as to what is able to cross through, a condition known as a barrier. In the fluid mosaic membrane model, lipids are organized in a arrangement, such that portions of the lipids are exposed to either the interior or exterior of the cell, while the lipid portions are sandwiched in the middle of the membrane. As part of the cell membrane, a main function of proteins is to provide while a main function of proteins is to provide Other cell membrane molecules include which function to provide fluidity to rigid membranes and rigidity to fluid membranes; and surface carbohydrates, which function to provide . Aminophospholipids move to the inner leaflet of the membrane, by an enzyme known as thearrow_forwardWhich of the following statements is correct? The prokaryotic ribosomal RNAs are 18S, 23S, and 28S The eukaryotic ribosome is 100S and consists of 60S and 40S subunits The prokaryotic ribosome has 4 subunits The eukaryotic ribosomal RNA are 28S, 18S, 5.8S and 5S The prokaryotic ribosome is 90S, and consists of 50S and 40S subunitsarrow_forward
- Which of the following is always true of ribosomes? aM I CORRECT?arrow_forward1) The nucleolus is a cytoplasmic organelle involved in the synthesis of ribosomes (true or false ) 2)DNA is often referred to as supercoiled because it is most commonly found in cells as two strands of inter-wounded DNA (true or false ) 3) translation is a process of synthesizing proteins based on base sequences of mRNA molecule (true or false )arrow_forward7) In DNA/RNA chains, what is the direction of synthesis? 8) DNA is double-stranded. What intermolecular force holds the two strands together? 9) Chromosomes are composed of chromatin. Chromatin is composed of nucleosomes. What are the components of nucleosomes? 10) Watch the Nova documentary ("The Secret of Image 51") or read the Nature article on Rosalind Franklin. Write a short summary and your reaction.arrow_forward
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