Hemophilia is a recessive disease carried on the X chromosome. If an unaffected carrier mother had offspring with an unaffected male, what percentage of her female offspring would be unaffected carriers of the disease? 75% 25% 100% 50%
Q: The gene for red-green colour vision is carried on the X chromosome. If the gene is faulty, colour…
A: Homozygous dominant is represented by both capital letters such as TT for tall.Heterozygous dominant…
Q: Red–green color blindness is a human X-linked recessive disorder. A young man with a 47,XXY…
A: Color blindness is caused by a X-linked recessive allele. It is most prominant in males as males…
Q: The most common form of colorblindness is a recessive, sex-linked hereditary con dition caused by a…
A: Color blindness is a genetic disorder which is caused by the inheritance of the mutated genes. The…
Q: What kind of sight is expected in the children from this marriage?
A: Daltonism is also known as deuteranopia which is a rare form of color blindness. In this form, the…
Q: If a trait is X-linked, which of the following statements is true? Two recessive alleles are needed…
A: X-linked is a trait where a gene is located on the X chromosome. Humans and different warm blooded…
Q: The gene for color vision is found on the X chromosome. Both the husband and wife have normal…
A: If wife and husband both have a normal colour vision then their genotype will be- Wife- XCX Husband-…
Q: In alley cats, the coat color is determined by a gene carried on the X chromosome. At the same time,…
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: Color blindness is a recessive sex-linked trait on the X chromosome. A non-color blind heterozygous…
A: The alleles are generally of dominant and recessive type and some other forms like codominant are…
Q: In the following pedigree of an X-linked recessive trait, which of the numbered individuals MUST be…
A: The pedigree indicates if the DNA is passed down unchanged from generation to generation. It can…
Q: One gene has alleles A and a: another gene has alleles B and b. For each of the following genotypes,…
A: The genotype is the genetic make-up of an organism that determines the genetic characteristics of an…
Q: A woman who is phenotypically normal is married to a phenotypically normal man. Her maternal…
A: Introduction X-linked Inheritance Means That The Gene Causing The Trait Or The Disorder Is Located…
Q: In humans, hemophilia is a sex-linked recessive disease, and the gene is located on the X…
A: Answer: HEMOPHILIA = It is the chromosomal disorder , which sex-linked recessive disease, men are…
Q: For an X-linked recessive allele, what proportion of female offspring will be carriers in the cross…
A: X - linked recessive allele - This type of allele is caused due to genetic mutation in the gene. In…
Q: In humans, brown eyes (B) are dominant over blue (b)*. A brown-eyed man marries a blue-eyed woman…
A: The gametes are produced as a result of meiosis in diploid parent cell.
Q: Male-pattern baldness is an X-linked recessive trait (Xb). A father with a genotype XBY and a mother…
A: The DNA (deoxyribonucleic acid) is the hereditary material of an organism. The DNA is a part of the…
Q: A cat is born with two X chromosomes and one Y chromosome. One of the X chromosomes carries the…
A: The fur color of the cats are generally controlled by genes present on the X-chromosome. One form of…
Q: For a common X-linked dominant trait in the population, an unaffected woman and an affected man are…
A: Answer: X-linked dominant trait is the sex linked diseased condition in which X chromosome is…
Q: If a recessive mutation occurs in a male on an X chromosome versus a Y chromosome, leading to…
A: The males have two different sex chromosomes, X and Y. The females have only a single type of sex…
Q: In humans, the allele for normal blood clotting, H, is dominant to the allele for hemophilia, h.…
A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…
Q: A trisomy of which autosomal chromosome is the only one which does not cause lethality in utero or…
A: Trisomy are diploid organisms which have an extra chromosome(2n+1). Trisomy 21 or Down's syndrome…
Q: In a trisomic individual, such as a person with trisomy 21 (Down syndrome),a genetic imbalance…
A: Trisomy 21 is a common genetic defect that is caused by chromosomal abnormalities. Trisomy 21 refers…
Q: Hemophilia is another example of an X-linked disease caused when a recessive allele (Xh) is…
A: Hemophilia is a bleeding disorder;which shows X linked recessive pattern of inheritance as the…
Q: Suppose gene B is X-linked and is embryonically lethal when homozygous or hemizygous recessive. A…
A: Let us first discuss the terms used in the question, Homozygous:- A condition when two copies of an…
Q: In fruit flies, eye color is carried on the X chromosome. The allele for red eyes is dominant over…
A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…
Q: There's more than one correct answers
A: Deoxy ribonucleic acid (DNA) consists of coded genetic information in the form of genes. These genes…
Q: An X-linked dominant allele causes hypophosphatemia in humans. A man with hypophosphatemia marries a…
A: Hypophosphatemia is an X linked dominant trait. Normal = XdXd, XdY Affected = XDXD, XDXd, XDY
Q: A human disease known as cystic fibrosis is inherited as a recessive trait. Two unaffected…
A: The genetic makeup of parents plays a key role in determining the genetic makeup of the children and…
Q: In the following pedigree of an X-linked recessive trait, which of the numbered individuals MUST be…
A: X linked trait are the disease related to the sex chromosomes or can be called the X chromosome .And…
Q: In humans, the allele for short fingers is dominant over that for long fingers. If a person with…
A: Given: The allele for short fingers is dominant over that for long fingers. Let us represent short…
Q: The human female has two X chromosomes. In which of the following ways will x-linked traits be…
A: X and Y chromosomes are sex chromosomes. The female has two X chromosomes and the male has XY…
Q: In humans, the allele for normal blood clotting (H) is dominant to the allele for hemophilia. This…
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: Cystic fibrosis in humans is caused by mutations in a single gene and is inherited as an autosomal…
A: Cystic fibrosis is caused due to mutation in gene that codes for the protein Cystic fibrosis…
Q: Which of the following statements best describes an individual whose genetic make-up is shown below?…
A: Chromosomes are thread like structure present in the nucleus of cell. These are the hereditary…
Q: Which of the following statements about X-linked recessive patterns is true? The X-linked trait…
A: An X-linked disorder is passed from a male to a female daughter. Since males have only one X…
Q: An unaffected woman, who is heterozygous for an X-linked allele causing Duchenne muscular dystrophy,…
A: The alleles are the alternative forms of a gene that are located on the same locus of the homologous…
Q: If a man and a woman, both with normal vision, marry and have a colorblind son, draw the Punnet…
A: Colorblindness and hemophilia are X-linked recessive disorders. They are transmitted from female…
Q: Men have XY (or YX) chromosomes and women have XX chromosomes. X-linked recessive genetic…
A: The trait is X linked recessive in nature. The X chromosome encodes normal phenotype. It is…
Q: Which of the 6 modes is this pedigree and why? 1) Autosomal Dominant 2) Autosomal Recessive 3)…
A: The mode of inheritance describes how a genetic trait or disorder is passed down from generation to…
Q: For an X-linked recessive disease, if an affected male is crossed with an unaffected female who is…
A: "Genetics" is the study of the functioning and main codes of variation and heredity. Inheritance is…
Q: Red-green colorblindness is inherited in an X-linked recessive pattern in humans. A colorblind man…
A: X linked recessive inheritance is a mode of inheritance in which mutation in a gene is found on the…
Q: Hemophilia is an X-linked disorder that affects the body’s ability to create blood clots. The allele…
A: According to the question, we have to find out the possible genotypes of the offspring when an…
Q: Which genotype below is considered a carrier for an x-linked recessive disorder? a C XBXB xBxb xbxb
A: X-linked recessive disorder - Genetic disorders connected to mutations in genes on the X chromosome…
Q: The A and B alleles are codominant, and the O allele is recessive. An AB blood type mother has…
A: Codominance means neither allele can mask the expression of another allele. Example of codominance…
Q: Which cellular process underlies Mendel´s law of independent assortment? Chromosomes align…
A: * Mendel's law of independent assortment states that two or more than two different gene alleles…
Q: If a female who is a carrier of an X-linked recessive gene for hemophilia mates with a male who does…
A: Hemophilia is a genetic bleeding disorder in which blood don't clot normally. It runs in the…
Q: Colour blindness is a recessive sex-linked trait found on the X chromosome. Suppose a colour blind…
A: Humans carry 22 pairs of autosomes and one pair of sex chromosomes. The sex chromosomes present in…
Q: A mother and father have four children; two sons and two daughters. What is the probability that the…
A: We are diploid (2n) organism and contain total 23 pairs of chromosomes. Between 23 pairs 22 pairs…
Step by step
Solved in 2 steps with 3 images
- If a female who is a carrier of an X-linked recessive gene for hemophilia mates with a male who does not have hemophilia, what is the chance that their daughter(s) will be a carrier of the gene? O percent 25 percent 50 percent 75 percentHemophilia is an X-linked recessive trait. The wife is hemophiliac, but the man has normal blood clotting. What is the probability that their SONS will be hemophiliac? 25% 75% 100% 50% 0%The gene for red-green colour vision is carried on the X chromosome. If the gene is faulty, colour blindness (XP) will occur in males. Red-green colour blindness occurs in about 8% of males but in less than 1% of females. Parents Non colour blind female Colour blind male A colour blind man has children with a woman who is not colour blind. The couple have four children. Their phenotypes are: 1 non colour blind son, 1 colour blind son, 2 non colour blind daughters. Describe the mother's: (a) Genotype: (b) Phenotype: Gameles Possible (c) Identify the genotype not possessed by any of the children: fertilizations, O 2012-2014 BIOZONE International ISBN: 978-1-927173-93-0 Photocopying Prohibited WEB 93 APP o 耳
- Hemophilia, disease in which the blood lacks a clotting factor, is caused by an X linked recessive gene. Joe doe not have hemophilia and Lucille is heterozygous for the condition. What is the chance that their MALE child will have hemophilia? (Note: you are calculating the probability for their MALE children only, in other words if they have 1 male child, what is the probability that he will be born with the disease?) 0% 1/4 or 25% 2/4 or 50% 3/4 or 75% 4/4 or 100%Men have XY (or YX) chromosomes and women have XX chromosomes. X-linked recessive genetic diseases (such as juvenile retinoschisis) occur when there is a defective X chromosome that occurs without a paired X chromosome that is not defective. Represent a defective X chromosome with lowercase x, so a child with the xY or Yx pair of chromosomes will have the disease and a child with XX or XY or YX or xX or Xx will not have the disease. Each parent contributes one of the chromosomes to the child. Complete parts a through d below. a. If a father has the defective x chromosome and the mother has good XX chromosomes, what is the probability that a son will inherit the disease? nothing (Type an integer or a decimal. Do not round.) b. If a father has the defective x chromosome and the mother has good XX chromosomes, what is the probability that a daughter will inherit the disease? nothing (Type an integer or a decimal. Do not round.) c. If a mother has one defective x…A form of hemophilia is caused by a sex-linked (X-linked) recessive gene. A phenotypically normal woman whose father had hemophilia marries a phenotypically normal man with no family history of hemophilia. What is the probability that their first son will have hemophilia? 1/4 1 3/4 0 1/2
- A female has a family history of Duchenne muscular dystrophy, a recessive sex- linked condition that is carried on the X chromosome. She does not have the disease. Her brother, sister, and father all have the disease. while her mother does not. She recently married a male with no family history of the disease. If they decide to have children, what percentage of their sons will have the disease? * 0 0% 0 25% O 50% 0 100%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Ocular albinism is a sex-linked recessive disease carried on the X chromosome. A female carrier mates with a male with this disorder. What percentage of all of their children is predicted to be an albino female? 1) 0% 2) 25% 3) 50% 4) 75% 5) 100%
- In humans, hemophilia is a sex-linked trait. Females can be normal, carriers, or have the disease. Males will either have the disease or not (but they won’t ever be carriers). X H X H = female, non-hemophilic X H X h = female, carrier X h X h = female, hemophilia X H Y = male, non-hemophilic X h Y= male, hemophiliac a.) Show the cross of a man who has hemophilia with a woman who is a carrier. What is the probability that their children will have the disease? b.) A woman who is a carrier marries a non-hemophilic man. Show the cross. What is the probability that their children will have hemophilia? What sex will a child in the family with hemophilia be? c.) A woman who has hemophilia marries a non-hemophilic man. How many of their children will have hemophilia, and what is their sex?Julie (a female) has hemophilia. Based on this information, what can we say about the genotypes of her parents? If Julie has children with a normal male, what is the chance that her sons have hemophilia? What is the chance that her daughters have hemophilia? A condition called Alport syndrome is caused by a dominant X linked allele. Males who have this condition usually have kidney failure, while females who are heterozygous for the condition have blood in the urine, but usually do not have kidney failure. A male has this condition and has children with an unaffected female What percent of his daughters will show any of the symptoms? What percent of his sons will show any of the symptoms?Hemophilia is a X-linked genetic disorder causing blood clotting problem. A dominant allele on the X chromosome, H, results in normal blood clotting, but a recessive allele for this gene, h, prevents normal clotting. Julie has hemophilia. Her husband, Brian, does not. What is the probability that Julie and Brian have a child that suffers from hemophilia? In your answer: - Show both lizards’ genotypes; - The complete Punnett square; - Answer the question.