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To explain: The mother’s genotype when the father is deaf, has a double recessive dd genotype, and all the children have hearing capability.
Concept introduction: Genotype is the allelic identity of the organism based on which the
To explain: The mother’s genotype if the couple has four children (non twins), and all have hearing capabilities.
Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.
To explain: The way in which the genotypes can be assigned.
Concept introduction: Genotype is the allelic identity of the organism based on which the phenotype is expressed. Autosomal recessive disorder is where the homozygous or double recessive nature of alleles of the autosomal genes or somatic genes causes defects in the individual, which can range from acute level to chronic level.
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Chapter 9 Solutions
Campbell Essential Biology with Physiology (5th Edition)
- Analysis of X-Linked Dominant and Recessive Traits The following is a pedigree for a common genetic trait. Analyze the pedigree to determine whether the trait is inherited as: a. autosomal dominant b. autosomal recessive c. X-linked dominant d. X-linked recessive e. Y-linkedarrow_forwardRed-green color blindness is inherited as a sex-linked recessive trait. The gene is found on the X chromosome. How can a man with normal color vision father a daughter who is red-green color-blind? Group of answer choices The man is heterozygous for red-green color blindness. The woman with whom he mates is red-green color-blind. He can't (unless there is a mutation). The man's mother carries an allele for red-green color blindness, and the expression of the trait skipped a generation.arrow_forwardPlease explain why sex linked recessive traits are inherited by the son from his mother. If a mother is a carrier, what percentage of her sons will have the trait? Please give me example of sex linked recessive trait.arrow_forward
- both parents are recessive short, name the 4 possible offspring.arrow_forwardGiven that the gene for the color-blind condition is recessive and X-linked. You have a female with Turner Syndrome, with their paternal parent that is color-blind. Which of these statements BEST explains this scenario.arrow_forwardThe allele for color blindness is carried on the X chromosome. Making color blindness a recessive trait an X-linked trait. A colorblind male and a carrier female for color blindness. Have a child. What is the percent chance that their son will be color blind? (I don’t want the answer to be wordy so please no internet answers just helpful clear answers)arrow_forward
- I. White eye cross White eye color is a recessive trait found on the X chromosome. Also called Sex-linked. This is called sex-linked. Gene symbols Xw White eye color X normal red eye color Y it’s a boy The parents were White eye color female XwXw and red eye color male XY Diagram of P1 cross: You are crossing XwY and XXw (figure out the phenotype) Diagram of F1 cross: Give expected F2 phenotypic ratio: Give expected F2 genotypic ratio:arrow_forwardthe following parents to create a Punnet Square and answer the question. Cross a heterozygous father with a heterozygous mother. (you can use the letter A for your parental genotypes) What percent of the offspring will exhibit the dominant phenotype?arrow_forwardRedgreen color blindness is an X-linked recessive disorder in humans. Your friend is the daughter of a color-blind father. Her mother had normal color vision, but her maternal grandfather was color-blind. What is the probability that your friend is color-blind? (a) 1 (b) (c) (d) (e) 0arrow_forward
- Equalizing the Expression of X Chromosome Genes in Males and Females How many Barr bodies would the following individuals have? a. normal male b. normal female c. Klinefelter male d. Turner femalearrow_forwardr blindness is recessive, x-linked trait. Ia marriages between a man who is colorblind and a woman a carrier what percentage of the children can be expected to be sons who are not color blind? What entage of the children can be expected to be daughters who are carriers? What percentage of the children can be expected to be daughters who are not carriers at all? 42 Searrow_forwardReview the process of autosomal recessive inheritance by coloring the following figures in this instance both parents are carriers of a treat to illustrate the transmission of the disorder from the parents to the children color the figures as describedarrow_forward
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
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