Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 13.5, Problem 1TC
Envision yourself as a physician. A mother, father, and their daughter come to you because the daughter is 16 years old and hasn’t had her first menstrual cycle, whereas all of her girlfriends started menstruating years ago. You do a Karyotype and that she is XY. Further molecular genetic testing reveals that she has a mutated androgen receptor allele on her X chromosome. The parents want to know how their daughter inherited the syndrome, why they don't have it and. If they were to have other children. If they would be androgen insensitive. How would you explain, in terms understandable to a layperson, the inheritance of androgen insensitivity and the likelihood that the parents would have another child with androgen insensitivity syndrome? Include diagrams to help them understand.
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Technology that can separate X-bearing and Y-bearing sperm offers prospective parents the opportunity to choose the sex of their child. First, the sperm are dosed with a DNA-staining chemical. Because the X chromosome has slightly more DNA than the Y chromosome, it takes up more dye. When a laser beam shines on the sperm, the X-bearing sperm shine more brightly than the Y-bearing sperm.a. How might this technology be beneficial for couples that have a history of X-linked genetic disorders?b. How might this technology be misused?
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Chapter 13 Solutions
Biology
Ch. 13.1 - describe three types of RNA that play roles in...Ch. 13.1 - Prob. 2CYLCh. 13.1 - Prob. 3CYLCh. 13.2 - Prob. 1TCCh. 13.2 - Prob. 1CYLCh. 13.2 - Prob. 2CYLCh. 13.2 - describe an example of post-transcription...Ch. 13.3 - Prob. 1TCCh. 13.3 - Prob. 1CSCCh. 13.3 - Prob. 1CYL
Ch. 13.3 - Prob. 2CYLCh. 13.3 - Prob. 3CYLCh. 13.3 - Prob. 4CYLCh. 13.4 - Prob. 1CSCCh. 13.4 - describe three different types of mutations?Ch. 13.4 - Prob. 2CYLCh. 13.5 - Prob. 1HYEWCh. 13.5 - Envision yourself as a physician. A mother,...Ch. 13.5 - Prob. 2TCCh. 13.5 - Prob. 1CYLCh. 13.5 - Prob. 2CYLCh. 13.5 - Prob. 3CYLCh. 13.5 - Prob. 4CYLCh. 13.5 - Prob. 1CTCh. 13 - Prob. 1MCCh. 13 - Which of the following is not true of RNA? a. It...Ch. 13 - Prob. 3MCCh. 13 - Prob. 4MCCh. 13 - Prob. 5MCCh. 13 - Synthesis of RNA from the instructions in DNA is...Ch. 13 - Prob. 2FIBCh. 13 - Prob. 3FIBCh. 13 - Prob. 4FIBCh. 13 - Prob. 5FIBCh. 13 - If a nucleotide is replaced by a different...Ch. 13 - Prob. 1RQCh. 13 - Name the three types of RNA that are essential to...Ch. 13 - Prob. 3RQCh. 13 - Prob. 4RQCh. 13 - Prob. 5RQCh. 13 - Prob. 6RQCh. 13 - Prob. 7RQCh. 13 - Define mutation. Describe four different effects...Ch. 13 - Prob. 1ACCh. 13 - Prob. 2AC
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- is C correct? because females can also inherit x-linked traits, they won’t express it but they’ll be carriers right?arrow_forward1. Maurice was born with an XY chromosome type, and he has the external genitalia of a male. He has, for the better part of his life, however, felt like he was supposed to be a woman. He has always identified more with feminine clothes, behaviors, and emotions. According to chapter 10 in your textbook, Maurice has a male __________. 2. Maurice was born with an XY chromosome type, and he has the external genitalia of a male. He has, for the better part of his life, however, felt like he was supposed to be a woman. He has always identified more with feminine clothes, behaviors, and emotions. According to chapter 10 in your textbook, Maurice has a female __________. 3. __________ is a biological phenomenon, while __________ is a socially constructed phenomenon. 4. A young boy develops facial and chest hair, pubic hair, and an enlarged Adam’s apple. This happens because puberty is stimulating the development of his ______.arrow_forwardMen are more likely to display an X-linked recessive disorder than are women. Why do you think this is true?arrow_forward
- Draw a Punnett square. cross an XX woman with an XY man. How many kinds of eggs can a woman produce in terms of their sex chromosomes? How many kinds of sperm cells can men produce in terms of their sex chromosomes? In any given fertilization event, what is the chance that a child will be XX? XY? In any given fertilization event, what is the chance that a child will be male? Female?arrow_forward5. Genes for which of the following are coded on the Y chromosome? a. Male pattern baldness b. Haemophilia c. Testosterone d. Testis development explain.arrow_forwardFill in the blank. Maternal effect occurs because proteins and RNA specified by maternal genes accumulate in the _____ of the oocyte and influence the early development of the embryo.arrow_forward
- Which of the following could explain how might a human having the XX sex chromosomes can develop as a male? Both of his X chromosomes become inactivated giving rinse to a male. The autosomal Sox9 gene is inactivated in the male. This is not possible. His father suffered a chromosomal translocation in the reproductive cells that moved the SRY region to the X chromosome. The ratio of X chromosomes to haploid sets of chromosomes has been altered.arrow_forwardSexual differentiation begins close to 4 weeks after fertilization, but cannot be seen visually until about 6 weeks post fertilization. All fetuses begin with a ______________________ gonad that is able to become either ovaries or testes, depending on the presence or absence of the Y chromosome. If the Y chromosome is present, a region of the Y chromosome will begin expressing genes that start the process of masculinization of internal structures. This region is known as the ______________________________ region or ___________ for short. The expression of these genes causes the bipotential gonad to develop into the testes. Once the testes have started developing, two hormones, testosterone and Anti-MüllerianHormone are produced. Testosterone causes the _____________________ ducts to develop into the _____________________. Testosterone also causes the internal development of the __________________ and __________________. Anti-Müllerian Hormone causes the ______________________ ducts…arrow_forwardChromosomes Genetic mutation Syndrome Internal reproductive anatomy External genitalia Secondary sex characteristics Sex typically assigned at birth Barr body (Y/N) SRY gene (Y/N) Testosterone (Low/High) Menstruation (Y/N) Fertile (Y/N) 46,XX None None Female Female Female Female YES NO Low YES YES 46,XX CYP21A2 mutation or deletion Congenital adrenal hyperplasia Female Ambiguous Male but reduced Female 46,XY SRY mutation or deletion Swyer syndrome Female but nonfunctional ovaries Female Absent or female, but reduced Female 45,X Complete or partial loss of X chromosome Turner syndrome Female but absent or nonfunctional ovaries Female Absent or female, but reduced Female 46,XY Androgen receptor (AR) deletion Complete androgen insensitivity syndrome…arrow_forward
- Discuss the genetic determination of sex and the inheritance of X-linked genes in mammals.arrow_forwardPlease answer fast compare and contrast gametogenesis in human males and females. How does this ensure that human genotype is maintained in normal humans. What possible variation can occur and what possible abnormalities will result from such?arrow_forwardHaving extra sex chromosome can have less serious negative effects than having an extra autosome and some of the individuals can function within a normal range. However, for some of them is very difficult to expect normal life. Make some comparison between 45, X women and 45, Y.arrow_forward
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