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 3, Problem 10EQ
Discuss why crosses (i.e., the experiments of Mendel) and the microscopic observations of chromosomes during mitosis and meiosis were both needed to deduce the chromosome theory of inheritance.
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Discuss the principles of the chromosome theory of inheritance. Which principles were deducedvia light microscopy, and which were deduced from crosses? What modern techniques couldbe used to support the chromosome theory of inheritance?
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Chapter 3 Solutions
Genetics: Analysis and Principles
Ch. 3.1 - 1. Which of the following is not found in a...Ch. 3.1 - When preparing a karyotype, which of the following...Ch. 3.1 - How many sets of chromosomes are found in a human...Ch. 3.2 - Binary fission a. is a form of asexual...Ch. 3.2 - Prob. 2COMQCh. 3.2 - What critical event occurs during the S phase of...Ch. 3.3 - 1. What is the function of the kinetochore during...Ch. 3.3 - Prob. 2COMQCh. 3.4 - Prob. 1COMQCh. 3.4 - Which phase of meiosis is depicted in the drawing...
Ch. 3.5 - In animals, a key difference between...Ch. 3.5 - Which of the following statements regarding plants...Ch. 3.6 - Which of the following is not one of the tenets of...Ch. 3.6 - A pea plant has the genotype TtRr. The independent...Ch. 3.6 - In mammals, sex is determined by a. the SRY gene...Ch. 3.6 - An abnormal fruit fly has two sets of autosomes...Ch. 3 - The process of binary fission begins with a single...Ch. 3 - 2. What is a homolog? With regard to genes and...Ch. 3 - What is a sister chromatid? Are sister chromatids...Ch. 3 - With regard to sister chromatids, which phase of...Ch. 3 - A species is diploid and has three chromosomes per...Ch. 3 - How does the attachment of kinetochore...Ch. 3 - 7. For the following events, specify whether they...Ch. 3 - Prob. 8CONQCh. 3 - A cell is diploid and contains three chromosomes...Ch. 3 - Prob. 10CONQCh. 3 - A eukaryotic cell is diploid and contains 10...Ch. 3 - Prob. 12CONQCh. 3 - 13. A cell has four pairs of chromosomes. Assuming...Ch. 3 - 14. With regard to question C13, how would the...Ch. 3 - Eukaryotic cells must sort their chromosomes...Ch. 3 - Why is it necessary for the chromosomes to...Ch. 3 - Nine-banded armadillos almost always give birth to...Ch. 3 - 18. A diploid species has four chromosomes per set...Ch. 3 - 19. Explain why the products of meiosis may not be...Ch. 3 - The period between meiosis I and meiosis II is...Ch. 3 - 21. List several ways in which telophase appears...Ch. 3 - Corn has 10 chromosomes per set, and the...Ch. 3 - The arctic fox has 50 chromosomes (25 per set),...Ch. 3 - 24. Let’s suppose that a gene affecting...Ch. 3 - 25. Describe the cellular differences between male...Ch. 3 - 26. At puberty, the testes contain a finite number...Ch. 3 - Describe the timing of meiosis I and II during...Ch. 3 - 28. Three genes (A, B, and C) are found on three...Ch. 3 - A woman with an abnormally long chromosome 13 (and...Ch. 3 - Assuming that such a fly would be viable, what...Ch. 3 - 31. What would be the sex of a human with each of...Ch. 3 - When studying living cells in a laboratory,...Ch. 3 - 2. In Morgan’s experiments, which result do you...Ch. 3 - 3. In his original studies of Figure 3.18, Morgan...Ch. 3 - How would you set up crosses to determine if a...Ch. 3 - 5. Occasionally during meiosis, a mistake can...Ch. 3 - Lets suppose that you have made a karyotype of a...Ch. 3 - Prob. 7EQCh. 3 - 8. White-eyed flies have a lower survival rate...Ch. 3 - A rare form of dwarfism that also included hearing...Ch. 3 - 10. Discuss why crosses (i.e., the experiments of...Ch. 3 - Prob. 11EQCh. 3 - 12. Experimentally, how do you think researchers...Ch. 3 - 1. In Figure 3.18, Morgan obtained a white-eyed...Ch. 3 - 3. Discuss the principles of the chromosome theory...
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- Explain the importance of Mendel’s inclusion ofreciprocal crosses within his controlled breedingprogram of pea plants.arrow_forwardPedigree Analysis Is a Basic Method in Human Genetics Using the pedigree provided, answer the following questions. a. Is the proband male or female? b. Is the grandfather of the proband affected? c. How many siblings does the proband have, and where is he or she in the birth order?arrow_forwardGive any two reasons for the selection of pea plants by Mendel for his experiments.arrow_forward
- Explain how Creighton and McClintock’s experiments involving a strain of corn with an abnormal chromosome 9 demonstrated the chromosome theory of inheritancearrow_forwardExplain how Mendel used the hybridization of pea plants as a model for his Laws of inheritance.arrow_forwardDiscuss how Mendel’s monohybrid results served as the basis for all but one of his postulates. Which postulate was not based on these results? Why?arrow_forward
- Explain the differences between the mendelian genetics and cytology. Also explain how modern cytogenetics attempts to bring together the four major biological concepts to understand the eukaryotic organisms, the distinctions between prokaryotes and eukaryotes. Give a clear discussion with facts from agriculturall important plant species. (Can you answer by giving references from the articles?) It is very important for my question.arrow_forwardProduce a pedigree diagram to convey the information shown. Gill, has come along to the Genetic Clinic with her younger sister, Charlotte. They have been invited because Charlotte’s youngest child, Jamie, who is 10 months old, is experiencing multiple, recurring parallel infections. Jamie has two very healthy older siblings, the eldest is his sister, Penny, and the middle child is his brother, Charlie. Gill’s youngest child, her son, Tom, is only 18 months old but has been in constant contact with the hospital since he was born. He has had recurrent bouts of pneumonia, bronchitis, otitis, conjunctivitis, and sinusitis. He often has diarrhoea and, due to the incredible strain on his small body, he is failing to thrive. Thankfully his medical team were thorough in their investigations, and he has just been diagnosed with X-linked agammaglobulinemia. Tom has two older siblings, the youngest of whom, Ella, was conceived as a twin, though IVF, but her twin died in utero at about 9 weeks…arrow_forwardDefine the terms allele, chromosome, and gene and explain how they relate to one another. Develop an analogy between these terms and the process of using a street map to locate a new apartment to live in next year (i.e., consider which term is analogous to a street, which to a type of building, and which to an apartment floor plan).arrow_forward
- Explain why it is important that Mendel had a large sample size of offspring to count in his experiments.arrow_forwardDiagram the P1 and F1 crosses, using Mendelian notation, to show the possible genotypes found in each generation. (Remember a diagram is just the cross itself, not the progeny).arrow_forwardHow did Mendel use evidence from monohybrid and dihybrid crosses to deduce his laws of segregation and independent assortment? How do these laws relate to meiosis?arrow_forward
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