ESSENTIALS OF GENETICS-MODIFIED ACCESS
9th Edition
ISBN: 9780134190006
Author: KLUG
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 5PDQ
If two chromosomes of a species are the same length and have similar centromere placements and yet are not homologous, what is different about them?
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If two chromosomes of a species are the same length and have similar centromere placements and yet are not homologous, what is different about them?
Why is the word homologous used to describe chromosome pairs, rather than the word identical?
The dog Canis familiaris is a diploid organism with 39 pairs of homologous chromosomes.
What is the 2n number for the dog?
What is the n number for the dog?
Chapter 2 Solutions
ESSENTIALS OF GENETICS-MODIFIED ACCESS
Ch. 2 - CASE STUDY | Timing is everything A man in his...Ch. 2 - CASE STUDY | Timing is everything A man in his...Ch. 2 - CASE STUDY | Timing is everything A man in his...Ch. 2 -
HOW DO WE KNOW?
1. In this chapter, we focused...Ch. 2 -
2. Review the Chapter Concepts list on page 12....Ch. 2 - What role do the following cellular components...Ch. 2 -
4. Discuss the concepts of homologous...Ch. 2 - If two chromosomes of a species are the same...Ch. 2 - Describe the events that characterize each stage...Ch. 2 - How are chromosomes named on the basis of their...
Ch. 2 - Prob. 8PDQCh. 2 -
9. Describe the phases of the cell cycle and the...Ch. 2 - Define and discuss these terms: (a) synapsis, (b)...Ch. 2 - Prob. 11PDQCh. 2 - Prob. 12PDQCh. 2 - Contrast spermatogenesis and oogenesis. What is...Ch. 2 -
14. Explain why meiosis leads to significant...Ch. 2 -
15. A diploid cell contains three pairs of...Ch. 2 - Prob. 16PDQCh. 2 -
17. During oogenesis in an animal species with a...Ch. 2 - Prob. 18PDQCh. 2 -
19. During the first meiotic prophase, (a) when...Ch. 2 -
20. Describe the role of meiosis in the life...Ch. 2 - Prob. 21PDQCh. 2 - Prob. 22PDQCh. 2 - Prob. 23PDQCh. 2 -
24. If one follows 50 primary oocytes in an...Ch. 2 -
25. The nuclear DNA content of a single sperm...Ch. 2 - For Problems 26–31, consider a diploid cell that...Ch. 2 - For Problems 26–31, consider a diploid cell that...Ch. 2 - For Problems 26–31, consider a diploid cell that...Ch. 2 -
For Problems 26–31, consider a diploid cell that...Ch. 2 - For Problems 26–31, consider a diploid cell that...Ch. 2 - For Problems 26–31, consider a diploid cell that...
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- In many organisms, including humans, chromosomes occur in homologous pairs; where does each member of the pair originate?arrow_forwardGiven the end results of the two types of cell division, why is it necessary for homologs to pair during meiosis and not desirable for them to pair during mitosis?arrow_forwardGiven that most chromosomes occur in homologous pairs, do most genes also occur in pairs?arrow_forward
- What are homologous chromosomes? Which are the human cells that do not have homologous chromosomes?arrow_forwardA diploid organism has a total of 14 chromosomes and about20,000 genes per haploid genome. Approximately how manygenes are in each linkage group?arrow_forwardWhat is a homologous pair (also called a tetrad)?arrow_forward
- Homologous chromosomes can be either monads or dyads. Explain. How is it possible to have genetically identical twins that don’t look exactly alike?arrow_forwardIf the skin cells of house cats contain 38 homologous pairs of chromosomes, how many chromosomes are present in the egg cells they produce?arrow_forwardWhy is the term “crossing-over” appropriate for the exchange of DNA segments between homologous chromosomes?arrow_forward
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