Essentials of Biology (5th International Edition)
5th Edition
ISBN: 9781259660269
Author: Sylvia S. Mader, Dr., Michael Windelspecht
Publisher: Mcgraw-Hill
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Chapter 10, Problem 3TC
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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(1) What is the karyotype for men who have an extra Y chromosome? Discuss all the ways you can test for this abnormality.
(2) What is the karyotype for women who have an extra X-chromosome? Discuss all the ways you can test for this abnormality.
Chapter 10 Solutions
Essentials of Biology (5th International Edition)
Ch. 10.1 - Prob. 1LOCh. 10.1 - Prob. 2LOCh. 10.1 - Distinguish between dominant and recessive traits.Ch. 10.1 - Apply Mendel`s laws to solve and interpret...Ch. 10.1 - Recognize and explain the relationship between...Ch. 10.1 - Summarize what Mendel`s experiments explained...Ch. 10.1 - Compare the phenotypic and genotypic ratios of a...Ch. 10.1 - Solve the following (using Figure 10.6): What is...Ch. 10.1 - Prob. 4CYPCh. 10.1 - Prob. 1A
Ch. 10.1 - Prob. 2ACh. 10.1 - Prob. 3ACh. 10.1 - Prob. 4ACh. 10.2 - Prob. 1LOCh. 10.2 - Prob. 2LOCh. 10.2 - List some common genetic disorders, state the...Ch. 10.2 - Prob. 1CYPCh. 10.2 - Prob. 2CYPCh. 10.2 - Prob. 3CYPCh. 10.2 - Prob. 5ACh. 10.2 - Prob. 6ACh. 10.2 - Prob. 7ACh. 10.2 - Prob. 8ACh. 10.2 - Prob. 9ACh. 10.2 - Prob. 10ACh. 10.2 - Prob. 11ACh. 10.3 - Understand how incomplete dominance and...Ch. 10.3 - Prob. 2LOCh. 10.3 - Prob. 3LOCh. 10.3 - Prob. 4LOCh. 10.3 - Prob. 1CYPCh. 10.3 - Prob. 2CYPCh. 10.3 - Prob. 3CYPCh. 10.3 - Explain how gene linkage and gene interactions...Ch. 10.3 - Prob. 12ACh. 10.3 - Prob. 13ACh. 10.3 - Prob. 14ACh. 10.4 - Prob. 1LOCh. 10.4 - Prob. 2LOCh. 10.4 - Prob. 3LOCh. 10.4 - Prob. 1CYPCh. 10.4 - Prob. 2CYPCh. 10.4 - Prob. 3CYPCh. 10.4 - Prob. 15ACh. 10 - 1. How does the collection of chromosomes we...Ch. 10 - Prob. 2BYBCh. 10 - How does meiosis help predict the probability of...Ch. 10 - Prob. S3.2BYBCh. 10 - Prob. S8.2BYBCh. 10 - Prob. S9.2BYBCh. 10 - Prob. 1TCCh. 10 - Prob. 2TCCh. 10 - Technology that can separate X-bearing and...
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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
- What is the karyotype for men who have an extra Y chromosome? Discuss all the ways you can test for this abnormality.arrow_forwardImagine that you are in your late 30s or early 40s and decide that you want a child. You realize that you’re at greater risk of having a child with Down’s Syndrome. What sorts of genetic screening are available today? If you find out that this child has this condition, do you think it’s appropriate to have an abortion? Why or why not? Question: Does elective abortion of fetuses with physical or other developmental disabilities have an effect on the perception of personhood, dignity, and rights in society? Explain.arrow_forwardD. If a man is color-blind, which parent did he inherit the gene from? Explain your answer. E. Which parent does a man get all his x-linked genes from? F. If a woman is color-blind, what do you know about the genotypes and phenotypes of her parents? G. Are men more likely than women to get a genetic disease which is x-linked and dominant? Are they more likely to get a disease that is x-linked and recessive? Explain your answers. H. Can a man with normal color vision have a colorblind daughter? Explain your answer. I. Which parent determines the sex of a child?arrow_forward
- A couple contemplating a pregnancy are in today for an appointment at a genetic counselling clinic to identify and interpret their risk of an inherited disorder. The nurse explains during teaching that all the following are characteristic features of fragile X chromosome of a 3-year-old male child EXCEPT: a. Macroorchidism b. Autistic behavior c. Intellectual disability d. Characteristic facial features e. Hyperextensible finger jointsarrow_forwardA. Explain how mutation causes variation. Give examples. B. Explain how meiosis causes genetic variation in the gametes. (150 words for Task 1)arrow_forwardSuppose you are a carrier of fragile X syndrome and want to have children. Would you choose pregnancy, adoption, or surrogacy? If you became pregnant, would you opt for prenatal diagnosis? Explain your decisions.arrow_forward
- A homozygous mother has retinoblastoma, a dominant sex-linked disorder carried on the X chromosome. The father does not have this disorder. What is the chance they will have a child with this disorder? 1) 0% 2) 25% 3) 50% 4) 75% 5) 100% 身arrow_forwardExplain the sex-linked traits. (S9LT-ld-29.4.4) Solve problems related to sex-linked traits. (S9LT-ld-29.4.4) WHAT I NEED (MATERIALS) • Worksheet • Pens WHAT TO DO (PROCEDURE) PART A Directions: Tell whether the following carry or show the sex-linke recessive spongy-tiny pores trait. Also, tell whether the individuals a male or female. Remember that since most sex-linked traits are recessive, the person w shows the trait can have no X's with big superscripted letters. So, if a m carries the trait, he must also show the trait. XDY XDXD XdY Carrier? (Yes or No) Has the Trait? (Yes or No) Male or Female Phenotype or Appearance of the Individual ided Questions: 1. What chromosomes will result to a normal phenotype (normal spongy po trait12arrow_forwardWhat is the karyotype for women who have an extra X-chromosome? Discuss all the ways you can test for this abnormality.arrow_forward
- A husband and wife have normal vision, although both of the couple's fathers are red-green color-blind, an inherited X-linked recessive condition. What is the probability that the couple's first child will be a normal son? Enter your answer as a fraction or a whole number. Hint: Remember, humans determine sex via the XX = female, XY = male system. Think about the probability of having either a son or a daughter and the probability of having red - green color blindness.arrow_forwardThe allele for color-blindness is carried on the X chromosome. Making color blindness (a recessive trait) an X - linked trait. A colorblind make and a carrier female for color blindness. (But is not colorblind herself) have a child. Show your work! A) what is the % chance that their son will be color blind? B) what is the % chance that their daughter will be color blind?arrow_forwardWhich of the following genotype(s) must a female child have in order to be color blind? XNXN XNXn XnXn XNY XnY (XN represents the normal color vision allele. Xn represents the color-blindness allele. Y represents the Y chromosome, which does not carry the color-vision gene.) Which of the following genotype(s) must a color-blind male have? Explain your rationale. XNXN XNXn XnXn XNY XnY (XN represents the normal color vision allele. Xn represents the color-blindness allele. Y represents the Y chromosome, which does not carry the color-vision gene.)arrow_forward
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