Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 14, Problem 6SQ
Choose the statement that is incorrect.
- a. A son can inherit a recessive allele on an X chromosome from either parent.
- b. An individual may inherit three or more of each type of chromosome characteristic or the species, a condition called polyploidy.
- c. A female child inherits one X chromosome from her mother and one from her father.
- d. Pedigree analysis can be used to determine a future child’s chance of being born with achcondroplasia.
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Considering an X-linked dominant trait, if an affected woman and an unaffected man decide to have children, which of the answer choices is possible for their children?
a.
All of their sons are expected to show the dominant trait.
b.
Their daughters are expected be heterozygous for the gene.
c.
Their daughters are not expected to show the dominant trait.
d.
Their sons are expected to be heterozygous for the gene.
e.
All their children, whether male or female, are expected to show the dominant trait.
Webbed fingers is inherited as an X-linked disease An unaffected male marries an
affected female.
a. Draw a Punnett square of the possible offspring.
b. List the phenotypes of the possible children
c. Draw a pedigree that displays the inheritance in you Punnett square
Hemophilia is a disease caused by a gene found on the X
chromosome. Therefore, it is referred to as a sex-linked disease.
The recessive allele causes the disease. A man with hemophilia
(xhy) marries a woman who is homozygous dominant (XHXH.
A. Illustrate using a Punnett square the probability that their children
will have the disease.
B. Will any of their children have the disease?
C. Predict the probabilities of their children having the disease.
Chapter 14 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 14 - Prob. 1DAACh. 14 - Prob. 2DAACh. 14 - Prob. 3DAACh. 14 - Prob. 4DAACh. 14 - Prob. 5DAACh. 14 - Prob. 1SQCh. 14 - Pedigree analysis is necessary when studying human...Ch. 14 - A recognized set of symptoms that characterize a...Ch. 14 - Prob. 4SQCh. 14 - A trait that is present in a male child but not in...
Ch. 14 - Choose the statement that is incorrect. a. A son...Ch. 14 - Prob. 7SQCh. 14 - Prob. 8SQCh. 14 - Klinefelter syndrome (XXY) can most be easily...Ch. 14 - Prob. 10SQCh. 14 - Does the phenotype indicated by the red circles...Ch. 14 - G6PD deficiency is an X-Linked recessive disorder....Ch. 14 - Marian syndrome (Section 13.5) is inherited in an...Ch. 14 - Duchenne muscular dystrophy, which is inherited in...Ch. 14 - Human females have two X chromosomes (XX); males...Ch. 14 - A mutation on an autosome causes a particular...Ch. 14 - Expression of the SRY gene on the Y chromosome...Ch. 14 - The somatic cells of most individuals with Down...Ch. 14 - Mutations in the genes for clotting factor VIII...
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- 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_forwardWhich of the following is indicated by roman numerals in a pedigree? a.Presence of the studied trait b.Generation c.Sex d.Marriage status Which of the following disorders in humans has an autosomal dominant inheritance pattern? a.Albinism b.Hemophilia c.Tay-Sachs disease d.Huntington’s disease For an X-linked recessive allele, what proportion of female offspring will be carriers in the cross of an affected father and a noncarrying mother? a.50 percent b.0 percent c.100 percentarrow_forwarda. Determine if the pedigree below can be for a trait that is X-linked traits. Write the genotype of each individual next to the symbol. b. Is it possible that this pedigree is for an X-linked recessive trait? c. What can you conclude about the children if both parents are affected with an X-linked recessive trait?arrow_forward
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