Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 10, Problem 6RQ
Define nondisjunction, and describe common syndromes caused by nondisjunction of sex chromosomes and autosomes.
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briefly describe how chromosomal disorders happen, explaining non disjunction
Nondisjunction which can affect sex chromosomes as well as autosomal chromosomes as a common cause of genetic disorders. Use the space provided to illustrate the process of nondisjunction with the end result being that one cell exhibits in the monopsony me while other one exhibits trisomy. Hint: a sperm will fertilize the egg and add it’s chromosome in the last step)
Assuming no other abnormalities, classify each of the following human sex chromosome complements as to whether or not individuals with that complement will be morphologically male or female. Three human sex chromosome complements will be classified as male and three will be classified as female.
XXY
XYY
XXX
XO
XY
XX
Chapter 10 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 10.1 - The Rainbow Connection The genetic variability or...Ch. 10.1 - Prob. 1CYLCh. 10.1 - Prob. 2CYLCh. 10.1 - Prob. 3CYLCh. 10.2 - The Rainbow Connection As Tess and Chris Giddings...Ch. 10.2 - describe the steps and outcome of meiotic cell...Ch. 10.2 - Prob. 1HYEWCh. 10.2 - What would be the consequences for the resulting...Ch. 10.2 - Prob. 2CYLCh. 10.2 - What would be the genetic consequences for the...
Ch. 10.2 - Prob. 3TCCh. 10.3 - explain how meiosis and sexual reproduction...Ch. 10.4 - compare and contrast the three main types of...Ch. 10.5 - Prob. 1CSRCh. 10.5 - Prob. 1CTCh. 10.5 - Prob. 1CYLCh. 10.5 - describe some of the human genetic disorders that...Ch. 10 - Many plants car. reproduce sexually or asexually....Ch. 10 - Meiotic cell division produces ________ (how many)...Ch. 10 - Pairs of chromosomes with almost identical genetic...Ch. 10 - Prob. 1RQCh. 10 - Prob. 2FIBCh. 10 - Prob. 2MCCh. 10 - Prob. 2RQCh. 10 - Prob. 3FIBCh. 10 - Prob. 3MCCh. 10 - Prob. 3RQCh. 10 - Prob. 4FIBCh. 10 - Prob. 4MCCh. 10 - Diagram and describe the three main types of...Ch. 10 - Prob. 5FIBCh. 10 - Prob. 5MCCh. 10 - Describe how meiosis provides for genetic...Ch. 10 - Define nondisjunction, and describe common...
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- Identify the type of chromosomal aberration described in each of the following cases: a. loss of a chromosome segment b. extra copies of a chromosome segment c. reversal in the order of a chromosome segment d. movement of a chromosome segment to another, nonhomologous chromosomearrow_forwarddescribe the Phenotypic effects of inversionsarrow_forwardA.If the diploid human chromosome number (2n) =46, what will be the chromosome number per cell in each stage of meiosis if nondisjunction of a pair of chromosomes happened during anaphase I of Meiosis I.arrow_forward
- Identify 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_forwardB. A woman is a carrier of a Robertsonian translocation between chromosomes 18 and 21. (i) Her chromosome set with respect to chromosomes 18 and 21 would consist of which specific chromosomes. Please draw a DIAGRAM illustrating these chromosomes as they would appear in their unreplicated state, clearly labeling the chromosomes and the chromosome arms present. (ii) If this woman were to have a child with a man who possess a completely normal set of chromosomes, there are six different possible outcomes with respect to the combinations of chromosomes 18, 21, and Robertsonian translocation chromosome that could be present in their offspring. Please indicate the TYPES and NUMBERS of chromosomes of each type present in their potential offspring. You may label the chromosomes as follows: 18 (for chromosome 18), 21 (for chromosome 21) or 18/21 (for the Robertsonian translocation chromosome). Also, please indicate the specific genetic abnormality (if any) that would be present in…arrow_forwardRelate the characteristics of the Y chromosomearrow_forward
- Briefly describe nondisjunction in meiosis and identify several potential consequences. In other words, what are the possible outcomes?arrow_forwardAnalyze the karyotype shown. Indicate if it is a chromosomal male or achromosomal female. If the karyotype is normal, write the word normal under name or description. If the karyotype is abnormal, name or describethe disorder.arrow_forwardExplain the genetic consequences of chromosomal configuration at different stages of meiosis.arrow_forward
- Explain why nondisjunction of sex chromosomes is more well-tolerated thannondisjunction in autosomes, even though genetic nondisjunction of sex chromosomes usually results in sterility and abnormalities of sex organs.arrow_forwardExplain about the Changes in Sex Chromosome Number ?arrow_forwardB.If the diploid human chromosome number (2n) =46, what will be the chromosome number per cell in each stage of meiosis if nondisjunction of a pair of chromosomes happened during anaphase II of Meiosis IIarrow_forward
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