EBK BIOLOGY
5th Edition
ISBN: 9780100667976
Author: Maier
Publisher: YUZU
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Chapter 9, Problem 11LTB
Summary Introduction
To analyze:
Whether the statement ' the kidney cell and the heart cell of a cat contain same genes' is true or false.
Introduction:
The genes are unit of hereditary in the organisms. All the characteristics leading to the functioning of the body is influenced by the genes. In the eukaryotic cells, the genes are present in the nucleus.
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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?
In 1967, a couple accused a hospital of switching their baby with another. DNA interpretation did not exist at this time so the hospital traced the blood types of the family in order to determine if a mistake was made. The mother had Type A blood, the father had Type AB blood, and the baby had Type O blood. Use the Punnett square to defend your answer to the following question:
Did the hospital make a mistake and switch the baby? ____________
A man with group A blood marries a woman with group B blood. Their child has group O blood. What is the genotype of the man? show your solution
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- Use the following information to answer the next question. In humans, the allele for normal blood clotting, H, is dominant to the allele for hemophilia, h. The trait is X-linked. A woman who is not a hemophiliac has a father who is a hemophiliac. If this woman has a child with a man who is a hemophiliac, what is the probability of them having a hemophiliac son? (Record your answer as a frequency between 0 and 1 rounded to two decimal places. Include the decimal.) Answer: Answerarrow_forwardHemophilia is inherited as a sex-linked recessive trait. A non-hemophilic man marries a non-hemophilic woman whose father had hemophilia. With respect to this information, indicate all possible genotypes their children could possibly have. Show ALL work using punnett squares.arrow_forwardColor-blindness is an X-linked recessive disorder. Under what circumstances will this condition manifest in a child? Top of Form If the child is a male and its mother has the recessive allele If the child is a female and its father has the recessive allele If the child is a female and its mother has the recessive allele If the child is a male and its father has the recessive allelearrow_forward
- Recessives Allele, an allele that is fully expressed in the phenotype of a heterozygote. Select one: True Falsearrow_forwardA gene is composed of two alleles. An allele can be either dominant or recessive. Suppose that a husband and wife, who are both carriers of the sickle-cell anemia allele but do not have the disease, decide to have a child. Because both parents are carriers of the disease, each has one dominant normal-cell allele (S) and one recessive sickle-cell allele (s). Therefore, the genotype of each parent is Ss. Each parent contributes one allele to his or her offspring with each allele being equally likely. Complete parts a) through c) below. a) Genes are always written with the dominant gene first. Therefore, there are two instances the offspring could have genotype Ss (one if the mother contributes the dominant allele and the father contributes the non-dominant allele; and one if the father contributes the dominant allele and the mother contributes the non-dominant allele). List the other two possible genotypes of the offspring. (Use a comma to separate answers as needed.)arrow_forwardAll cells express the same genes. false truearrow_forward
- Hemophilia is an X-linked disorder that affects the body’s ability to create blood clots. The allele for normal blood clotting, XH, is dominant over the allele for hemophilia, Xh. An unaffected daughter from the above cross married a man who does not have hemophilia. Determine the probability of their offspring being A daughter with hemophilia A daughter without hemophilia A son with hemophilia A son without hemophilia Express your answer as a phenotypic ratio. Number: Answer Answer Answer Answer Phenotype: Affected female Unaffected female Affected male Unaffected malearrow_forwardJill has a son named Jack. She claims that James is the father. James denies this. Jill has Type A blood. Jack has Type O blood. James has Type B blood. Based on this information, what would a court decide on this problem? Question 3 options: James could be the father of Jack because James could be heterozygous James is not the father of Jack because their phenotypes are different James is not the father of Jack because their genotypes are different James could be the father of Jack because type B blood is usually I^Bi James is the father of Jack because he passed on a recessive allelearrow_forwardIn a paternity case a single mother claimed that a certain man was the father of her baby. The man denied it claiming that her current boyfriend was the father. The court ordered a blood test (cheaper than dna testing) to see if he could be ruled out as the father. The mother is type O and the baby was type O the man was type AB. What is the possible genotype of the biological father? A. Heterozygous Type A B. Homozygous Type A C. Heterozygous Type Barrow_forward
- The 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_forwardHemophilia is a blood disorder which is sex-linked. A woman carrier has children with a normal man. Determine the chances for girls and boys with hemophilia. [Remember that females have the XX genotype and males have the XY genotype. Do not place an allele on the Y chromosome. Example: XN Xn for female; Xn Y for male]arrow_forwardUse the following information to answer the next question. TTGG ttgg F1 TG tg F2 TtGg Which types of genotypes are represented in F1 and F2 in the above figure, respectively? heterozygous and heterozygous heterozygous and homozygous homozygous and heterozygous homozygous and homozygousarrow_forward
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