Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 25.1, Problem 2COMQ
Assuming complete penetrance, which type of inheritance pattern is consistent with the pedigree shown here?
a. Autosomal recessive
b. Autosomal dominant
c. X-linked recessive
d. X-linked dominant
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Assuming complete penetrance, which type of inheritance pattern isconsistent with the pedigree shown here?
a. Autosomal recessiveb. Autosomal dominantc. X-linked recessived. X-linked dominant
Shaded individuals in this pedigree express a particular trait.
Based on this pedigree, what is the mode of inheritance of the trait?
O A. autosomal dominant
O B. autosomal recessive
OC sex-linked dominant
D. sex-linked recessive
Polydactyly is a congenital physical anomaly in in
humans, dogs, cats; and having supernumerary fingers or
toes. If it is an autosomal dominant trait, when is a genotype of a person that shows normal
phenotype?
a. heterozygous recessive
b. heterozygous dominant
c. homozygous recessive
d. homozygous dominant
Chapter 25 Solutions
Genetics: Analysis and Principles
Ch. 25.1 - Which of the following wouldnotbe consistent with...Ch. 25.1 - 2. Assuming complete penetrance, which type of...Ch. 25.1 - 3. Which of the following is not a common...Ch. 25.1 - Prob. 4COMQCh. 25.2 - Prob. 1COMQCh. 25.2 - Haplotype association studies are aimed at the...Ch. 25.3 - 1. Which of the following is not a method used in...Ch. 25.3 - 2. Which of the following prenatal genetic testing...Ch. 25.4 - Prob. 1COMQCh. 25.5 - 1. An oncogene is produced from a ________that has...
Ch. 25.5 - Which of the following is a type of genetic change...Ch. 25.5 - 3. Tumor-suppressor genes promote cancer...Ch. 25.5 - 4. Normal (nonmutant) tumor-suppressor genes often...Ch. 25.5 - Prob. 5COMQCh. 25.6 - Prob. 1COMQCh. 25 - 1. With regard to pedigree analysis, make a list...Ch. 25 - 2. Explain, at the molecular level, why human...Ch. 25 - 3. Many genetic disorders exhibit locus...Ch. 25 - Prob. 4CONQCh. 25 - Prob. 5CONQCh. 25 - Figure 25.1 illustrates albinism in two different...Ch. 25 - Prob. 7CONQCh. 25 - Prob. 8CONQCh. 25 - Ehler-Danlos syndrome is a rare disorder caused by...Ch. 25 - 10. Hurler syndrome is due to a mutation in a gene...Ch. 25 - Like Hurler syndrome, Fabry disease involves an...Ch. 25 - Achondroplasia is a rare form of dwarfism caused...Ch. 25 - Prob. 13CONQCh. 25 - 14. Marfan syndrome is due to a mutation in a...Ch. 25 - 15. Sandhoff disease is due to a mutation in a...Ch. 25 - Describe the two assumptions that underlie the...Ch. 25 - Prob. 17CONQCh. 25 - What is a prion? Explain how a prion relies on...Ch. 25 - 19. Some people have a genetic predisposition for...Ch. 25 - What is the difference between an oncogene and a...Ch. 25 - Prob. 21CONQCh. 25 - Prob. 22CONQCh. 25 - Prob. 23CONQCh. 25 - Prob. 24CONQCh. 25 - Prob. 25CONQCh. 25 - Prob. 26CONQCh. 25 - Prob. 27CONQCh. 25 - With regard to cancer cells, which of the...Ch. 25 - Prob. 29CONQCh. 25 - 1. Which of the following experimental...Ch. 25 - Prob. 2EQCh. 25 - 3. What is meant by the term genetic testing? How...Ch. 25 - Prob. 4EQCh. 25 - 5. Chapter 21 describes a method known as Western...Ch. 25 - 6. An experimental assay for the blood-clotting...Ch. 25 - 7. Discuss ways to distinguish whether a...Ch. 25 - 8. The codon change (Gly-12 to Val-12) in...Ch. 25 - Explain how DNA microarrays are used in molecular...Ch. 25 - Make a list of the benefits that may arise from...Ch. 25 - 2. Our government has finite funds to devote to...Ch. 25 - Prob. 3QSDC
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- On occasion, a trait that appears to be autosomal is produced in unexpected ratios in male and female offspring. What is this an example of? A. codominance B. sex-linked genes C. multiple alleles D. amniocentesisarrow_forwarda. What is the type of inheritance? b. What is known of the genotype of the male in the above cross? c. What is known of the genotype of the female in the above cross? d. Provide map distances if possible.arrow_forwardMatch the pattern of inheritance to the appropriate term. A. Heterozygotes with different alleles of the DTL1 gene survive better than homozygotes B. The disease is usually passed from a mother to all children C. Pure-breeding pumpkin plants grown on sandy soil have bigger seeds than plants of the same pure-breeding lineage grown on peaty soil. D. A cross between a true-breeding plant with serrated leaf edges and a true- breeding plant with smooth leaf edges produces an F1 generation with 88% plants with serrated leaves. E. A cross between two heterozygotes, DdFf, produces offspring in three phenotypic groups; Long wings in offspring with genotype D_F_, short wings in offspring with D_ff, and no wings in offspring with the genotypes ddF_ and ddff. F. Individuals homozygous for a mutation in SME have a heightened sense of smell and large earlobes. G. Grey chickens bred together have offspring that are black, grey and white in a 1:2:1 ratio H.Alleles at locus S…arrow_forward
- Which pedigree demonstrates the inheritance of an autosomal trait? Why A. Figure 14.1 B. Figure 14.2arrow_forwardObserve the following pedigree below: 13 14 15 2 8 16 9 17 3 10 18 11 19 12 28. Determine if the trait above is dominant or recessive. Explain your answer using specific people on the pedigree. 29. Determine if the trait above is autosomal or sex-linked (how many males versus females have the trait). Explain your answer using specific people on the pedigree.arrow_forwardBaldness is a phenomenon where individuals lose hair as they grow older. As an X-linked recessive gene, what instances do females manifest this trait? a. heterozygous recessive b. heterozygous dominant c. homozygous recessive d. homozygous dominantarrow_forward
- A particular monogenic trait has 5 different variants. Explain how you might determine the inheritance pattern for these variants.arrow_forwardIn humans, potential or expecting parents can be tested for the presence of the allele for the autosomal recessive cystic fibrosis. Which combination of parents are LEAST likely to produce a child with cystic fibrosis? A. 2 parents with cystic fibrosis B. 2 parents without cystic fibrosis C. 1 parent without cystic fibrosis and 1 with cystic fibrosis D. 2 parents who do not know if they have cystic fibrosisarrow_forwardA trait that is present in a male child but not in either of his parents is characteristic of inheritance. a. autosomal dominant b. autosomal recessive c. X-linked recessive d. It is impossible to answer this question without more informationarrow_forward
- Which statement about the pattern of inheritance for a recessive X-linked allele is true? A. Unaffected parents can produce daughters who are affected. B. Unaffected parents can have sons who are affected and daughters who are carriers. C. Unaffected fathers can be carriers. D. Affected parents do not produce affected children. E. Every affected person has an affected parent.arrow_forwardWhy is there no trait (letter) on the y chromosome for males in this pedigree? A. Because the trait is X-linked (on the X chromosome) B. Because Ms. Premo made a mistake C. Because we never write anything on the y chromosomearrow_forwardMatch the mode of inheritance with its description. (1) autosomal recessive A. inherited by males from carrier mothers(2) autosomal dominant B. inherited from one affected parent(3) X-linked recessive C. inherited from two carrier (unaffected) parentsarrow_forward
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