ESSENTIALS OF GENETICS-MODIFIED ACCESS
9th Edition
ISBN: 9780134190006
Author: KLUG
Publisher: PEARSON
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Chapter 6, Problem 3PDQ
Define these pairs of terms, and distinguish between them.
aneuploidy/euploidy
monosomy/trisomy
Patau syndrome/Edwards syndrome
autopolyploidy/allopolyploidy
autotetraploid/amphidiploid
paracentric inversion/pericentric inversion
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Define these pairs of terms, and distinguish between them.aneuploidy/euploidymonosomy/trisomyPatau syndrome/Edwards syndromeautopolyploidy/allopolyploidyautotetraploid/amphidiploidparacentric inversion/pericentric inversion
Discuss the following sets of terms:
a) trisomy and triploidy,
b) aneuploidy and polyploidy.
Please describe the differences between autopolyploid and allopolyploid.
Chapter 6 Solutions
ESSENTIALS OF GENETICS-MODIFIED ACCESS
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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- For a species with a diploid number of 18, indicate how many chromosomes will be present in the somatic nuclei of individuals that are haploid, tetraploid, trisomic, and monosomic.arrow_forwardChromosomal abnormalities can interfere with pairing and segregation of homologous chromosomes in meiosis and so lead to infertility problems and unbalanced mutations in gametes. In which of the following do problems occur only when homologous regions recombine, instead of during the simple pairing and segregation of homologous chromosomes? Group of answer choices Paracentric inversions Robertsonian translocations Translocations Odd multiples of autopolyploidy Allopolyploidy with differing n numbers of chromosomesarrow_forwardIdentify the type of chromosomal aberration described in each of the following cases: a. loss of a chromosome segment b. extra copies of a chromosome segment c. reversal in the order of a chromosome segment d. movement of a chromosome segment to another, nonhomologous chromosomearrow_forward
- Variations in Chromosome NumberAneuploidy Describe the process of nondisjunction and explain when it takes place during cell division.arrow_forwardWhich of the following is false? Group of answer choices With a pericentric inversion, there is no loss in genetic material. Haploinsufficiency is caused by a duplication event causing increased expression of a gene. An effect of aneuploidy is that it changes the dosages of some genes. Pseudodominance indicates that one of the homologous chromosomes has a deletion. Sterility is a possible effect of autopolyploidyarrow_forwardFor a species with a diploid number of 22, how many chromosomes will be present in the somatic nuclei of individuals that are haploid, tetraploid, trisomic, and monosomic.arrow_forward
- Which of the following terms should not be used to describe ahuman with three copies of chromosome 12?A. PolyploidB. TriploidC. AneuploidD. EuploidE. 2n + 1F. Trisomy 12arrow_forwardCan structural aberrations on certain chromosomes lead to aneuploidy? If yes, explain.arrow_forwarddiscuss the Variations of Euploidyarrow_forward
- Please write in digital formatDefine the following terms:a) Triploidb) Monosomicc) Trisomicd) Deletionarrow_forwardDefine nondisjunction and explain how it causes aneuploidy. Name two syndromes resulting from aneuploidyarrow_forwardCompare the following three terms: polyploidy, aneuploidy, and nondisjunction. Briefly discuss examples of each of these conditions.arrow_forward
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