Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Consider 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.
0
Which 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 matched
Which 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 subunits
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
Knowledge Booster
Learn more about
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
- 1) 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_forwardWhich of the following has beads on a string structure? a) Nucleosomes b) Chromosomes c) Heterochromatin d) Chromatinarrow_forwardI am studying pancreatic islet cells and have isolated, cloned, and sequenced a novel protein that you postulate has 4 transmembrane segments. What kind of experiment would allow me to test this hypothesis that there are 4 trans membrane segments?arrow_forward
- What are Cyclin and mRNA? How are they related?arrow_forwardThe nucleus a) has a single membrane and compartmentalizes the genetic material b) has a double membrane joined by nuclear pores, is continuous with the endoplasmic reticulum membrane, and compartmentalizes the nuclear genetic material c) has a double membrane joined by nuclear pores, is continuous with the smooth endoplasmic reticulum membrane only, and compartmentalizes the nuclear genetic material d) None of these are accuratearrow_forward* hat do you think holds together the various secondary structural elements in a Particular three-dimensional pattern? (Hint: Look back at Figure 4 - what is sticking out from the sides of the a-helices and B-strands?) glutamic acid B CH, CH valine CH H-N CH H. valine alanine CH2 CH2 lysine Figure 4-4 Essential Cell Biology 3/e (O Garland Science 2010) Figure 6. Three examples of bonding interactions that stabilize the tertiary structures of proteins (indicated by arrows A, B,and C). Copyright 2013 from Essential Cell Biology, 4th Edition by Alberts et al. Reproduced by permission Garland Science/ Taylor & Francis LLC. CH2 CH, SH SH CH2 CH2 OXIDATION CH2 SH REDUCTION SH CH2 CH2 Figure 4-26 Essential Cell Bialogy 3e o Garland Science 2010) Figure 7. Disulfide bonds within proteins can form (left-pointing arrow) or be broken (right- pointing arrow), depending on their chemical surroundings (oxidative or reducing). Copyright 2013 from Essential Cell Biology,4th Edition by Alberts et al.…arrow_forward
- What results in the alteration of amino acid sequences during polypeptide formation in protein synthesis? A defective polypeptide may arise because of a change in its amino acid sequence Despite the change in amino acid sequence, the polypeptide formed will always be functional and will never cause a disease. The cell will have no other choice but to revert the faulty polypeptide into amino acids to undo its work. The nucleus, by means of its powerful enzymes, will eventually destroy the damaged protein so that it will not wreak havoc in the cell.arrow_forwardWhich of the following has beads on a string structure?a) Chromosomesb) Chromatinc) Nucleosomesd) Heterochromatinarrow_forwardIn the context of cell biology, what do we mean by form follows function? What are a least two examples of this concept?arrow_forward
- describe the structure and function of: a) Two cell components that are found in both eukaryotic and prokaryotic cells. b) Two cell components that are found in eukaryotic cells only (plant or animal). c) Two cell components that are often found in prokaryotic cells only.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_forwardEukaryotic cells have a ribosome. a) 60S; 70S b) 70S; 80S c) 80S; 70S d) 70S; 60S _size ribosome, while prokaryotic cells have a sizearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
QCE Biology: Introduction to Gene Expression; Author: Atomi;https://www.youtube.com/watch?v=a7hydUtCIJk;License: Standard YouTube License, CC-BY