In 1965 a faulty study was performed, which suggested that the XYY karyotype was associated with violent antisocial criminal behavior. The study was later disproven, as there is no association between an additional Y chromosome and abnormal behavior. Explain how this karyotype could arise in someone by mentioning the sex of the affected person, the identity of the parent (mother or father) in which the non-disjunction occurred, and the specific meiotic division during which non-disjunction took place.

In 1965 a faulty study was performed, which suggested that the XYY karyotype was associated with violent antisocial criminal behavior. The study was later disproven, as there is no association between an additional Y chromosome and abnormal behavior. Explain how this karyotype could arise in someone by mentioning the sex of the affected person, the identity of the parent (mother or father) in which the non-disjunction occurred, and the specific meiotic division during which non-disjunction took place.

Name: In 1965 a faulty study was performed, which suggested that the XYY kar
Uploaded: 2024-03-20T06:42:55.000Z
Channel: Bartleby
Description: In 1965 a faulty study was performed, which suggested that the XYY karyotype was associated with violent antisocial criminal behavior. The study was later disproven, as there is no association between an additional Y chromosome and abnormal behavior.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter6: Cytogenetics: Karyotypes And Chromosome Aberrations

Section: Chapter Questions

Problem 16QP: Assume that a meiotic-nondisjunction event causes trisomy 8 in a newborn. If two of the three copies...

See similar textbooks

Similar questions

Assume that a meiotic-nondisjunction event causes trisomy 8 in a newborn. If two of the three copies of chromosome 8 are absolutely identical, at what point during meiosis did the nondisjunction event take place?
A color-blind woman with Turner syndrome (XO) has a father who is color blind.Given that the gene for the color-blind condition is recessive and X-linked, provide a likely explanation for the origin of the color-blind and chromosome constitution in the color-blind woman. nondisjunction in the mother in meiosis I or II nondisjunction in the father at meiosis I no abnormalities had to occur to produce this daughter nondisjunction in the father in meiosis I or II nondisjunction in both the mother and father in meiosis I.
A boy with Klinefelter syndrome (47,XXY) is born to a mother who is phenotypically normal and a father who has the X- linked skin condition called anhidrotic ectodermal dysplasia. The boy has patches of normal skin and patches of abnormal skin. Which of the following statemnets likely explains these observations? The father contributed the extra X chromosome in the son as a result of a non-disjunction in meiosis I during spermatogenesis. The mother contributed the extra X chromosome in the son as a result of a non-disjunction in meiosis II during oogenesis. The mother contributed the extra X chromosome in the son as a result of a non-disjunction in meiosis I during oogenesis. The father contributed the extra X chromosome in the son as a result of a non-disjunction in meiosis II during spermatogenesis. Either parent could have contributed to the extra X chromosome in the son as a results of disjunction in either meiosis I or meiosis II during…
The gene for nose shape is found on the X chromosome. Round nose is dominant to pointed nose. Human individuals with XXY (an additional X chromosome) are male. Individuals with XO (only one X chromosome) are female. For the following family, identify the possible nondisjunction events (rare mistakes during meiosis) that could explain the phenotype of the child. A man with a pointed nose and a woman with a round nose have a daughter with a round nose. This daughter has Turner Syndrome (genotype XO: one X chromosome). Nondisjunction must have occurred in melosis 2 of the mother More than one of the answers is correct Nondisjunction must have occurred in meiosis 1 of the father Nondisjunction must have occurred in meiosis 1 of the mother Nondisjunction must have occurred in meiosis 2 of the father
An individual heterozygous for a reciprocal translocation possesses the following chromosomes: A B • C D E F G A B • C D V W X R S • T U E F G R S • T U V W X Q. Diagram the alternate, adjacent-1, and adjacent-2 segregation patterns in anaphase I of meiosis.
In a diploid organism of genotype A/a; B/b: D/d, the allele pairs are all on different chromosome pairs. The panels in Figure 1 purport to show anaphase in individual cells. Assuming no crossing over, state whether each panel in Figure 1 represents anaphase occurring during meiosis I, meiosis II, mitosis or is impossible for this particular genotype.
An individual heterozygous for a reciprocal translocation possesses the following chromosomes: A B • C D E F G A B • C D V W X R S • T U E F G R S • T U V W X a. Draw the pairing arrangement of these chromosomes in prophase I of meiosis. b. Diagram the alternate, adjacent-1, and adjacent-2 segregation patterns in anaphase I of meiosis. c. Give the products that result from alternate, adjacent-1, and adjacent-2 segregation.
Genes A and B are on different chromosomes. An individual has the genotype: AaBb You sequence two gametes produced by this individual and find one gamete has the genotype AB, and one has the genotype Ab. How can this one individual (genotype AaBb) produce two gametes with different genotypes (AB or Ab)? Your answer should describe a specific process which occurs during meiosis. At what stage of meiosis does this process occur?
Different allele combinations can result from non-disjunction in meiosis I or II respectively. Please refer to your Module 12 worksheet for how these allele combinations were generated in gametes. Based on this principle, which of the following can explain why XYY was produced? A. Non disjunction in the mom meiosis I. B. Non disjunction in the mom meiosis II. C. Non disjunction in the dad meiosis I. D. Non disjunction in the dad meiosis II.
A karyotype shows that a child has Klinefelter syndrome (47,XXY). If the child is also colorblind (due to a recessive X-linked allele), despite his parents having normal color vision, in which parent and stage of meiosis did nondisjunction occur? And explain why .
A woman who is homozygous for normal color vision mates with a colorblind male. they produce a female child how has only one X chromosome and who is also color blind. In which parent did the nondisjuction take place? Can you specify which meiotic division?
A young couple is planning to have children. Knowing that there have been a substantial number of stillbirths, miscarriages, and fertility problems on the husband’s side of the family, they see a genetic counselor. A chromosome analysis reveals that, whereas the woman has a normal karyotype, the man possesses only 45 chromosomes and is a carrier of a Robertsonian translocation between chromosomes 22 and 13. Q. What types of zygotes will develop when each of gametes produced by the man fuses with a normal gamete produced by the woman?