Essentials of Genetics
9th Edition
ISBN: 9781292108933
Author: KLUG
Publisher: PEARSON
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Chapter 6, Problem 11PDQ
Predict the genetic composition of gametes derived from tetrads of inversion heterozygotes where crossing over occurs within a pericentric inversion.
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Predict the genetic composition of gametes derived from tetradsof inversion heterozygotes where crossing over occurs within apericentric inversion.
Derive the gametes produced by an autotetraploid individual with genotype Aaaa undergoing random chromosome segregation
Compare an autotetraploid and an allotetraploid to each other with respect to the characteristics listed below. Answer auto, allo, both or neither for each statement. a) Balanced and unbalanced gametes can form.b) Contains 4 homologous copies of every chromosome.c) Originated from 2 different ancestral diploid species.d) Fully fertile.
Chapter 6 Solutions
Essentials of Genetics
Ch. 6 - CASE STUDY| Fish tales Aquatic vegetation...Ch. 6 - CASE STUDY |Fish tales Aquatic vegetation...Ch. 6 - CASE STUDY |Fish tales
Aquatic vegetation...Ch. 6 - HOW DO WE KNOW? In this chapter, we focused on...Ch. 6 -
CONCEPT QUESTION
2. Review the Chapter Concepts...Ch. 6 -
3. Define these pairs of terms, and distinguish...Ch. 6 -
4. For a species with a diploid number of 18,...Ch. 6 - What explanation has been proposed to explain why...Ch. 6 - Contrast the fertility of an allotetraploid with...Ch. 6 -
7. Why do human monosomies most often fail to...
Ch. 6 -
8. Describe the origin of cultivated American...Ch. 6 - Predict how the synaptic configurations of...Ch. 6 - Inversions are said to “suppress crossing over.”...Ch. 6 -
11. Predict the genetic composition of gametes...Ch. 6 - Human adult hemoglobin is a tetramer containing...Ch. 6 -
13. The primrose, Primula kewensis, has 36...Ch. 6 - Certain varieties of chrysanthemums contain 18,...Ch. 6 - Drosophila may be monosomic for chromosome 4, yet...Ch. 6 - Mendelian ratios are modified in crosses involving...Ch. 6 -
17. Having correctly established the F2 ratio in...Ch. 6 -
18. In a cross between two varieties of corn,...Ch. 6 -
19. A couple planning their family are aware that...Ch. 6 -
20. A woman who sought genetic counseling is...Ch. 6 - The woman in Problem 20 has had two miscarriages....Ch. 6 -
22. In a recent cytogenetic study on 1021 cases...Ch. 6 -
23. A boy with Klinefelter syndrome (47,XXY) is...Ch. 6 - In a human genetic study, a family with five...Ch. 6 - A 3-year-old child exhibited some early indication...Ch. 6 - A normal female is discovered with 45 chromosomes,...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Provide two reasons why meiosis leads to genetic variation in diploid organisms.arrow_forwardWhat would be the result from a nondisjunction of chromosome 21 in a zygote that is 46,XY? Explain your answerarrow_forwardPorcupines have 34 chromosomes. If a specific porcupine has 5 heterozygous chromosomes, how many different gametes can they produce via independent assortment?arrow_forward
- Seedless watermelons that you find in the supermarketare triploids, where x = 11.a. At what frequency are balanced gametes generatedby triploid watermelons?arrow_forwardDiagram the types of gametes you would expect from a ++/yw female, given no crossovers, one crossover, two crossovers, three crossovers, and fours crossovers between bonsister chromatids of homologous chromosomes?arrow_forwardexplain how the Law of Segregation and the Law of Independent Assortment relate directly to chromosome movements during meiosis. Which particular stages of meiosis demonstrate each of these two laws?arrow_forward
- If two traits, dwarfism and stem color, were both on the same pair of chromosomes, would you expect an F2 generation of 9:3:3:1 for a dihybrid cross? Use Medel's laws and your understanding of meiosis to explain your answer.arrow_forwardHow can duplications arise? A. by uneven crossing over during meiotic prophase B. by the loss of a telomere C. by chromosome breakage and exchange of arms D. by spindle failure during chromosome separationarrow_forwardExplain the term homogametes.arrow_forward
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