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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The ff. mothers, (A) through (E) with given phenotypes, each produced one child whose phenotype is described.
For each child, select as the father ONE of the five males whose genotypes are given.
Genotype of male
(1) IA i MN rr XAY
(2) IB i MN RR XAY
(3) ii NN rr XAY
(4) ii MM rr XaY
(5) IAIA MN RR XaY
Give possible genotypes of all the mothers and children:
Mother
Maternal Phenotype
Phenotype of child
Possible father (write number only)
A
Type A, M, Rh+, normal color vision
Type O, M, Rh+ , normal color vision, male
B
Type B, N, Rh-, colorblind
Type O, N, Rh-, colorblind male
C
Type O, M, Rh-, normal color vision
Type A, MN, Rh+, colorblind, female
D
Type A, N, Rh+, normal color vision
Type AB, MN, Rh+, normal color vision, female
E
Type AB, MN, Rh- , normal color vision
Type AB, M, Rh-, colorblind, male
MODIFIED TRUE OR FALSE. In the following items, read each statement carefully. I. In humans and other mammals, biological sex is determined by a pair of sex chromosomes: XX in males and XY in females.II. In the sexual pattern of inheritance, an X-linked pattern will be present and can attached both on the X and Y chromosomes.
a. The first statement (I) is correct and the second statement (II) is wrong
b. The first statement (I) is wrong and the second statement (II) is correct
c. Both statements are correct
d. Both statements are wrong
MODIFIED TRUE OR FALSE. In the following items, read each statement carefully. I. One important event that happens in Meiosis at Prophase 1 is when crossing over between sister chromatids of non-homologous chromosomes takes place.II. This crossing over is the exchange of genetic material that causes variations among individuals.
a. The first statement (I) is correct and the second statement (II) is wrong…
Hi can I get help with this question please? I am stuck!! Topic is sexual reproduction and it’s physiology.
Scenario: Hefty Harry is tall, muscular, produces sperm, and he has a thick beard, high concentrations of circulating testosterone, and a penis. In other words, he very much looks like a man. However, when he got his genome sequenced, he and everyone else were extremely surprised to learn that he has two X chromosomes. He comes to ask you how this could be possible.
You tell Hefty Harry that it’s possible...(see image)
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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- ess in males. A male i1s either normal or has colorblindness. He cannot be a carrier. The allele for colorblindness is carried on the X chromosome and is recessive. A man, whose father was colorblind, has a colorblind daughter. a) Is this man colorblind? How do you know? b) Where did he get his gene for colorblindness? c) Must the fathers of all colorblind girls be colorblind? Why? 1. A man whose parents were normal with respect for color vision marries a woman of normal vision and similar pedigree. One of their daughters is colorblind. Give the genotypes of this daughter, her parents, and paternal grandparents. Is the girl's father colorblind? 2. 100% Give Feedba 10 >>arrow_forwardContinuing from the previous question. Ande, who has the genotype: AB*TUVFG RS*CDEWX is choose your answer... to have a phenotype as a result of their chromosome error. Ande and their partner (who does not have a chromosome error) produce a fertilized embryo. It is choose your answer... chromosome error due to the error in Ande's chromosomes. A that the embryo has a fatal choose your answer... likely (a calculable probability) unlikely (due to chance) --arrow_forwardvivo V20 male or female. Remember that since most sex-linked traits are recessive, the person wno shows the trait can have no X's with big superscripted letters. So, y a male carries the trait, he must also show the trait. XDY XDXD XªY PXPX Carrier? (Yes or No) Has the Trait? (Yes or No) Male or Female Phenotype or Appearance of the Individual Guided Questions: 1. What chromosomes will result to a normal phenotype (normal spongy pore trait)? 2. Do all individuals who have the spongy tiny pore allele show it in their physical appearance? Why or why not? 3. Can males be a carrier of an X-linked recessive trait? How about females? Explain. 4. What will be the sex of an individual who is easily affected by an X-linked recessive trait? Why?. The Y chromosome is missing this section of the X chromosome. The lower sections Males are at greater risk for inheritingarrow_forward
- Can We Talk About Sex? Abstract: A three–year–old female undergoes elective inguinal hernia repair and unexpectedly is found to have testes in the hernia sacs. A recommendation is made not to disclose the patient’s genotype to her mother. This case study addresses the ethical conflict of whether to disclose the patient’s male genotype to the parent that has been raising the child as female. This case highlights the ethical risks and potential consequences later in life of not disclosing a patient’s CAIS diagnosis and treatment. Conversely, what would the consequences be for disclosing?arrow_forwardWhy are X-linked conditions more common in men than in women? Group of answer choices 1. men acquire two copies of the defective gene during fertilization. 2. men need to inherit only one copy of the recessive allele for the condition to be fully expressed. 3. the sex chromosomes are more active in men than in women. 4. the genes associated with the sex-linked conditions are linked to the Y chromosome, which determines maleness.arrow_forwardCan We Talk About Sex? Mindy B. Statter Abstract: A three–year–old female undergoes elective inguinal hernia repair and unexpectedly is found to have testes in the hernia sacs. A recommendation is made not to disclose the patient’s genotype to her mother. This case study addresses the ethical conflict of whether to disclose the patient’s male genotype to the parent that has been raising the child as female. B. Now that disclosure of a CAIS diagnosis is mandatory, what responsibility would a parent potentially have to override a doctor’s recommendations for gender maintenance?arrow_forward
- A. Give 7 genes located on X chromosomes and provide 2 protein products of each gene. B. Give 4 genes located on Y chromosomes and provide 2 protein products of each gene.arrow_forwardI need some help completing this fill-in-the-blank. Each answer option is bolded and bracketed. 1. The purpose of the AMEL locus is [identification of ethnicity, determination of age, identification of gender], it is located in the [autosomes, sx chromosomes]. Females have only one peak originating from their [X only, Y only, X and Y] chromosomes and males have two peaks originating from their [X only, Y only, X and Y] chromosomes. 2. In the D8S1179 locus, Sophie is [homozygous, heterozygous] for allele with 13 copies. One copy of this allele came from her mother and the other copy came from [Sam or Bill, Sam or Harry, Bill or Harry, Sam Bill or Harry(Either 3)] 3. In the D21S11 locus, Sophie's allele [28, 30] came from the mother and her other allele, 28, came from [Sam only, Bill only, Harry only]. 4. In the D18S51 locus, Sophie's paternal allele came from [Bill only, Bill and Harry, Sam Bill or Harry (Either 3)]. 5. You already know Sam, Bill and Harry are related to one another.…arrow_forwardDiscuss and compare the source (mechanism) and types of increased mutations in older mother oocytes versus older father sperm (ch 4 and ch 7.) (Diagrams may be helpful if needed to convey your thoughtsarrow_forward
- Please explain Androgen Insensitivity Syndrome (ALS). What is the phenotype of these individuals? What is their chromosomal makeup?Why does this disorder occur?arrow_forwardSUBJECT-GENETICS TOPIC: Inheritance Related to Sex Identify some form of abnormalities wherein it could be due to the presence of gene in: X chromosome only b) Y chromosome only ? Give example/s. Some traits are expressed by both in the male and female humans,but kindly elaborate such traits which are only present in male or in female, give example/s which could be explain under sex-limited and sex-influenced genes.arrow_forwardPlease advise on the below for a punnet sqaure Brian is 15 months old. He has recently been diagnosed with X-linked ichthyosis. He is in the clinic with his family to receive the results of the genetic testing. The testing has been done to find out if Brian has an inherited or sporadic form of the disorder. Faisal and Nadia, Brian’s parents, are worried because they are expecting their second child, another boy, in about 3 months. Nadia’s medical notes reveal that she experienced significant post-natal depression after Brian’s birth. The clinician informs them that Nadia is a carrier of a causative mutation and asks them for a family history. Nadia explains that she has an older sister and that her mother miscarried a baby at about 16 weeks before going on to conceive Nadia. Nadia’s sister is married and has one healthy daughter aged 6. Nadia and her sister lost contact with their mother after she left their dad, but they are still in touch with their maternal grandmother, Lily, who…arrow_forward
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