Essential Cell Biology (Fourth Edition)
Essential Cell Biology (Fourth Edition)
4th Edition
ISBN: 9780815345251
Author: Bruce Alberts, Dennis Bray, Karen Hopkin, Alexander D. Johnson, Julian Lewis, Martin Raff, Keith Roberts, Peter Walter
Publisher: W. W. Norton & Company
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 18, Problem 22Q
Summary Introduction

To explain: The sister chromatids do not end up in the same daughter cell, rather they are split apart equally into two daughter cells.

Introduction: During the S phase of cell cycle, the DNA undergoes replication and two copies of DNA are produced, which are condensed to form sister chromatid structure bound to a centromere. The cell cycle process involves the cell division, M phase. The M phase has four stages: prophase, metaphase, anaphase, and telophase. In each of these phases, the chromosomes are aligned accordingly, so that each daughter cell receives only one copy of the chromosome each. In somatic cells, where mitosis takes place, the chromosomes are present in diploid number that is two copies of the same gene as alleles are present. The alleles can be homozygous or heterozygous.

Summary Introduction

To explain: The consequences if a mitotic error occurs where the sister chromatids end up in the same daughter cell.

Introduction: During the S phase of cell cycle, the DNA undergoes replication and two copies of DNA are produced, which are condensed to form sister chromatid structure bound to a centromere. The cell cycle process involves the cell division, M phase. The M phase has four stages: prophase, metaphase, anaphase, and telophase. In each of these phases, the chromosomes are aligned accordingly, so that each daughter cell receives only one copy of the chromosome each. In somatic cells, where mitosis takes place, the chromosomes are present in diploid number that is two copies of the same gene as alleles are present. The alleles can be homozygous or heterozygous.

Blurred answer
Students have asked these similar questions
You aim to test the hypothesis that the Tbx4 and Tbx5 genes inhibit each other's expression during limb development. With access to chicken embryos and viruses capable of overexpressing Tbx4 and Tbx5, describe an experiment to investigate whether these genes suppress each other's expression in the limb buds. What results would you expect if they do repress each other? What results would you expect if they do not repress each other?
You decide to delete Fgf4 and Fgf8 specifically in the limb bud. Explain why you would not knock out these genes in the entire embryo instead.
You implant an FGF10-coated bead into the anterior flank of a chicken embryo, directly below the level of the wing bud. What is the phenotype of the resulting ectopic limb?  Briefly describe the expected expression domains of 1) Shh, 2) Tbx4, and 3) Tbx5 in the resulting ectopic limb bud.
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
Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY