HUMAN BIOLOGY
16th Edition
ISBN: 9781260233032
Author: Mader
Publisher: RENT MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 19.6, Problem 2CYP
Summary Introduction
To analyze:
Describe the chromosomal abnormality associated with Down syndrome.
Introduction:
Nondisjunction is the failure of separation of homologous chromosomes or sister chromatids during anaphase I and anaphase II respectively. It results in the presence of an abnormal number of chromosomes in the progeny.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
List the genetic disorders resulting from chromosome deletions:
Give several examples of chromosome number disorders.
Explain the reason why a dicentric chromosome is unstable.
Chapter 19 Solutions
HUMAN BIOLOGY
Ch. 19.1 - Distinguish between a chromosome and chromatin.Ch. 19.1 - Prob. 2LOCh. 19.1 - Prob. 3LOCh. 19.1 - Prob. 1CYPCh. 19.1 - Prob. 2CYPCh. 19.1 - Prob. 3CYPCh. 19.2 - Prob. 1LOCh. 19.2 - Prob. 2LOCh. 19.2 - Prob. 3LOCh. 19.2 - Describe the cell cycle, and list the locations of...
Ch. 19.2 - Prob. 2CYPCh. 19.2 - Prob. 3CYPCh. 19.2 - Summarize why external controls may be necessary...Ch. 19.3 - Prob. 1LOCh. 19.3 - Prob. 2LOCh. 19.3 - Prob. 3LOCh. 19.3 - Prob. 1CYPCh. 19.3 - Prob. 2CYPCh. 19.3 - Prob. 3CYPCh. 19.4 - Prob. 1LOCh. 19.4 - Prob. 2LOCh. 19.4 - Prob. 3LOCh. 19.4 - Prob. 1CYPCh. 19.4 - Explain how meiosis reduces the likelihood that...Ch. 19.4 - Prob. 3CYPCh. 19.4 - Compare and contrast the stages of oogenesis and...Ch. 19.5 - Prob. 1LOCh. 19.5 - Prob. 2LOCh. 19.5 - List the similarities and differences between...Ch. 19.5 - Prob. 2CYPCh. 19.5 - Prob. 3CYPCh. 19.6 - Prob. 1LOCh. 19.6 - Describe the causes and consequences of trisomy...Ch. 19.6 - Prob. 3LOCh. 19.6 - 4. Describe the effects of deletions,...Ch. 19.6 - Prob. 1BTSCh. 19.6 - Prob. 2BTSCh. 19.6 - Prob. 1CYPCh. 19.6 - Prob. 2CYPCh. 19.6 - Prob. 3CYPCh. 19.6 - Prob. 4CYPCh. 19 - Prob. 1ACh. 19 - 2. Which of the following is/are produced by the...Ch. 19 - 3. Label the drawing of the cell cycle: then list...Ch. 19 - 4. At which of the following checkpoints is the...Ch. 19 - ...Ch. 19 - ...Ch. 19 - a. metaphase
b....Ch. 19 - ...Ch. 19 - metaphase
prornetaphase
telophase
prophase c....Ch. 19 - 10. If a parent cell has a diploid number of 18...Ch. 19 - 11. If a parent cell has 22 chromosomes. the...Ch. 19 - 12. Crossing-over occurs between
sister chromatids...Ch. 19 - 13. Which of these helps provide genetic...Ch. 19 - 14. Polar bodies are produced during
DNA...Ch. 19 - 15. The pairing of homologous chromosomes occurs...Ch. 19 - 16. Sister chromatids separate during anaphase of...Ch. 19 - 17. Monosomy or trisomy occurs because...Ch. 19 - 18. A person with Klinefelter syndrome is and...Ch. 19 - Prob. 1TCCh. 19 - Prob. 2TCCh. 19 - Prob. 3TCCh. 19 - Prob. 4TC
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
- How does nondisjunction lead to abnormalities in chromosome number? Describe two types of genetic disorders that can result from nondisjunction.arrow_forwardExplain the Syndromes from AbnormalChromosome Numbers ?arrow_forwardWhat is the chromosome number of the individual? Based from the karyotype, identify the name of the genetic condition of the individual. List down two (2) distinctive characteristics of the affected individual.arrow_forward
- What is the Philadelphia chromosome? How is this chromosome related to cancer? Identify how this chromosome appears physically different in a karyotype than it appears in a normal karyotype. Include references to information sources used.arrow_forwarddescribe a specific example of chromosome abnormality that leads to human cancers, such as leukemia, other than the Philadelphia chromosome that is derived from the translocation of chromosome 9 and 22arrow_forwardexplain the Phenotypic effects of duplicationsarrow_forward
- briefly describe how chromosomal disorders happen, explaining non disjunctionarrow_forwardIdentify the type of chromosomal aberration described in each of the following cases and provide and example. loss of a chromosome segment extra copies of a chromosome segment reversal in the order of a chromosome segment movement of a chromosome segment to another, non homologous chromosomearrow_forwardDiscuss the mechanisms that lead to erroneous chromosome duplication, mention how they effect the development of Down’s syndrome.arrow_forward
- Describe a chromosomal deletion, duplication, translocation, and inversion.arrow_forwardExplain Chromosome abnormalities Deletions microdeletions duplicationsarrow_forwardwhich genetic disorder matches below descriptions. extra 21st chromosome attaches to chromosome 14. Affected individual exhibit epichanthic folds of eyelids, simian crease in palms, and mental retardation. trisomy 18 Affected individuas have an elongated skull, hair lip, cleft palate, rocker-bottom feet. Life expectancy is about 10 weeks. trisomy 21. Affected indiviudals exhibit epicanthic folds of eyelids, protruding tongue, small, low set ears, and retardation.arrow_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 LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningHuman Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY