Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Chapter 3, Problem 27QP
Summary Introduction
To predict: The pedigree chart for the family based on the given information.
Introduction: The pedigree chart helps to depict the complete history of the pattern of inheritance of genetic disease from one generation to another generation. The inheritable genetic disease is either autosomal dominant or recessive or sex-linked based on which the probability of disease in a future generation can be predicted.
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Discuss how meiosis and the events in meiosis explain Mendel’s laws. (please keep it short) 5 sentences
A WOMAN IS HETEROZYGOUS FOR TWO
HARMFUL RECESSIVE ALLELES IN
DIFFERENT CHROMOSOMES, ONE FOR
PHENYLKETONURIA (PKU) AND THE
OTHER FOR CYSTIC FIBROSIS (CF). SHE
MARRIES AN UNAFFECTED MAN WHO IS
A CARRIER FOR NEITHER DISEASE.
IF SHE HAS A DAUGHTER, WHAT IS THE
PROBABILITY THAT THE CHILD WILL
CARRY NEITHER OF THE RECESSIVE
ALLELES?
EXACTLY ONE?
BOTH?
Mendel’s observation that two different traits could be inherited independently of each other can be explained by understanding that:
During meiosis, the process of chromosome assortment into daughter cells is random
Alleles of the genes reside on homologous chromosomes
All of the listed choices are correct
During meiosis, maternal and paternal members of homologous chromosomes are distributed separately into daughter cells
Chapter 3 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 3.4 - Why do scientists design experiments to disprove...Ch. 3.4 - Should Ockhams razor be considered an irrefutable...Ch. 3.7 - Prob. 1EGCh. 3.7 - For most cases, a p value of 0.05 is used to...Ch. 3 - Prob. 1CSCh. 3 - Prob. 2CSCh. 3 - Prob. 3CSCh. 3 - Prob. 1QPCh. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...
Ch. 3 - Prob. 4QPCh. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Prob. 6QPCh. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - Prob. 14QPCh. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - Prob. 17QPCh. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - Meiosis Explains Mendels Results: Genes Are on...Ch. 3 - Meiosis Explains Mendels Results: Genes Are on...Ch. 3 - Meiosis Explains Mendels Results: Genes Are on...Ch. 3 - Prob. 26QPCh. 3 - Prob. 27QPCh. 3 - Variations on a Theme by Mendel A characteristic...Ch. 3 - Prob. 29QPCh. 3 - Variations on a Theme by Mendel Pea plants usually...Ch. 3 - Prob. 31QPCh. 3 - Prob. 32QPCh. 3 - Prob. 33QPCh. 3 - Prob. 34QPCh. 3 - Prob. 35QPCh. 3 - Prob. 36QP
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- A karyotype shows that a child has Klinefelter syndrome (47,XXY). If the child is also colorblind (due to a recessive X-linked allele), despite his parents having normal color vision, in which parent and stage of meiosis did nondisjunction occur? And explain why .arrow_forwardAn abnormality of the large intestine called intestinal polyposis (IP) is dependent on dominant gene A. A nervous disorder called Huntington’s chorea (HC) is determined by dominant gene H, a lethal gene the effects of which appear on a mean age of 40 years. A and H are on nonhomologous chromosomes. A man carrying the gene A marries a woman carrying the gene H. If this couple had 7 children, what is the chance that at least 2 of their children will survive up to old age? What are the genotypes of the man and his wife?arrow_forwardPlease discuss during which phases of Meiosis Mendel’s Law of Segregation, and the law of independent assortment take place.arrow_forward
- Which of the following is(are) critically important to ensure Mendel's 1st and 2nd laws? Please select all correct answer options. Meiosis I separation of homologous chromosomes separation of sister chromatids Meiosis IIarrow_forwardHemophilia is a disease caused by a recessive allele (h), which is found on the X chromosome, non-hemophilia is (H). A normal man marries a woman that is heterozygous for the trait. Give the genotypes and phenotypes of all possible offspring?arrow_forwardAssume that color blindness is a recessive character on the X chromosome. A man and woman with normal vision have the following offspring: a daughter with normal vision who has one colorblind son and one normal son; a daughter with normal vision who has six normal sons; and a color-blind son who has a daughter with normal vision. What are the probable genotypes of all individuals?arrow_forward
- Mendel's law of independent assortment states that the alleles of two (or more) different genes get sorted into gametes independently of one another. In other words, the allele a gamete receives for one gene does not influence the allele received for another gene. Assuming that during Metaphase 1 you have possibility 1 see picture below. Sketch possibility number 2 by using red and yellow color pencils. and upload possibility 2. Note: if you do not color pencils label them yellow and red. Possibility 1 Sketch Possibility 2 # Two equally probable arrangements of chromosomes at metaphase Iarrow_forwardA healthy couple had their first child affected by cystic fibrosis. Their next three sons were not affected by this disorder. The couple is expecting another child and wishes to know the probability (odds) that this child will be: Not affected if the three brothers are homozygous dominant. Not affected if three unaffected brothers were determined by DNA typing to be carriers. Not affected if she (he) has one affected and five unaffected sisters. Draw pedigree of the family described in c.arrow_forwardA man is homozygous dominant for fair skin and heterozygous for black-straight hair, his wife has brown skin and black-curly hair. The wife's hair color is the same genotypically with the husband. His mother in-law hair color is red since birth. The couple wanted to have kids. What are the possible outcome of their offspring? Answer the following questions:arrow_forward
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