Microbiology: Principles and Explorations
Microbiology: Principles and Explorations
9th Edition
ISBN: 9781118743164
Author: Jacquelyn G. Black, Laura J. Black
Publisher: WILEY
bartleby

Concept explainers

bartleby

Videos

Textbook Question
Book Icon
Chapter 7, Problem 1CTQ

Prokaryotes usually have just one chromosome and carry just one gene for each trait. Human body cells, in contrast, carry duplicate genetic material: two genes for each trait. How does this affect the expression of genes in bacteria as opposed to human genes?

Blurred answer
Students have asked these similar questions
Agrobacterium tumefaciens is a bacterium that infects a wide range of broad-leaved plants. During infection, a plasmid called Ti is transferred into the plant cells, where that plasmid DNA is integrated into the plant’s genome. Some of the genes encoded by this plasmid are expressed by host cell machinery in the plant cell. These gene products produce plant hormones which stimulate cell division in the infected cells, causing the development of a plant tumor which provides an environment for that bacterium to grow.  You are studying a novel isolate of A. tumefaciens and want to determine which of the genes on the Ti plasmid are expressed in the bacterium, and which are expressed in the plant. You start by sequencing the Ti plasmid. a)  Considering the DNA sequence of Ti, describe two specific genetic features that would help you to differentiate whether a given gene is likely expressed in the plant or bacterium. b)  You collect plant tumor tissue, containing both bacterial and plant…
You are working in a lab studying Progeria. You design an expression vector containing a mutated form of the lamin gene that codes for a lamin protein that can no longer be phosphorylated. What do you predict would happen if you express this mutant form of lamin in a cell line? Lamin proteins would not be transported into the nucleus and would remain in the cytosol. Nuclear lamins will be unable to produce dimers, as the coiled-coil formation will be disrupted. Disassembly of the nuclear lamins will occur prematurely. Nuclear lamins will no longer disassemble properly during prometaphase. O Nuclear lamins will no longer assemble properly during telophase.
You are interested in the effects of mutations on the expression of a human protein- encoding gene expressed in skin cells. The gene has one intron that is 450 nucleotides long. After this intron is removed from the pre-mRNA, the mRNA transcript is 1100 nucleotides in length. Diploid somatic cells have two copies of this gene. Predict the size and amount of mRNA from the cytosol of skin cells, which were obtained from the following individuals: • Individual 1: Normal individual with no mutations in this gene. • Individual 2: Homozygous for a deletion that removes the -10 to -100 region of the gene that encodes this mRNA. • Individual 3: Heterozygous in which one gene is normal and the other gene has a deletion that removes the -10 to -100 region. • Individual 4: Homozygous for a five-nucleotide deletion in the intron that removes the GT sequence at the 5' splice site. Explain your answers.

Chapter 7 Solutions

Microbiology: Principles and Explorations

Knowledge Booster
Background pattern image
Biology
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
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Text book image
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Text book image
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Text book image
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Chapter 5 Microbial Metabolism; Author: Heather Davis;https://www.youtube.com/watch?v=wH_HrsfDWZw;License: Standard Youtube License