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 3.1, Problem 3COMQ
How many sets of chromosomes are found in a human somatic cell, and how many chromosomes are within one set?
a. 2 sets, with 23 in each set
b. 23 sets, with 2 in each set
c. 1 set, with 23 in each set
d. 23 sets, with 1 in each set
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If a muscle cell of a typical organism has 32 chromosomes, how many chromosomes will be in a gamete of that same organism? a. 8 b. 16 c. 32 d. 64
When does synapsis between homologous chromosomes occur?
A. prophase I of meiosis
B. prophase II of meiosis
C. prophase of mitosis
D. metaphase of mitosis
What are homologous chromosomes?
a. The two halves of a replicated chromosome
b. Two identical chromosomes from one parent
c. Two genetically identical chromosomes, one from each parent
d. Two genetically similar chromosomes, one from each parent
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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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
- Which event leads to a diploid cell in a life cycle? a. meiosis b. fertilization c. alternation of generations d. mutationarrow_forwardA cell in metaphase of mitosis has 20 chromosomes. Therefore, this cell has 40 chromatids. The same cell will have how many chromosomes at anaphase of mitosis? A. 10 B. 40 C. 60 D. 20arrow_forwardWhen homologous chromosomes cross over, what is the result? a. Two sister chromatids get tangled, resulting in one altering the sequence of its DNA b. Two sister chromatids exchange identical pieces of DNA c. Two nonsister chromatids get tangled, break and proteins re-join them d. Each of the four DNA strands of a homologous pair is broken, and the pieces are mixedarrow_forward
- What is the fundamental difference between mitosis and meiosis? A. DNA is replicated twice in meiosis, but only once in mitosis. B. The number of DNA molecules per cell nucleus is cut in half in meiosis but remains constant in mitosis. C. The number of chromosomes doubles in meiosis, whereas it stays the same in mitosis. D. Mitosis involves two cell divisions, whereas meiosis only involves one.arrow_forwardHow many chromosomes are in a cell at the end of mitosis? a. 22 b. 9 c. 92 d. 46 e. 23arrow_forwardhow many chromosomes are present in a human cell during anaphase of mitosis? A. 23 B. 92 C. 22 D. 0 E. 46arrow_forward
- As a cell undergoes meiosis What happens during crossover? A. Sister chromatids and non sister chromatids physically swap places within the tetrad resulting in the mixture of entire chromatids B. Nonsister chromatids exchange parts of themselves resulting in mixing of genetic information between those chromatids C. Homologous chromosomes lineup along the equatorial play randomly mixing the maternal and paternal chromosomes along the way D.arrow_forwardWhat is the definition of a map unit? A. The frequency of recombination between two or more genes B. 1 kb (1000 base pairs) of DNA C. One crossover event in meiosis D. 1% recombinant products of meiosisarrow_forwardWhen does DNA replication occur during meiosis? a. during telophase b. during prophase I c. during anaphase and telophase d. during interphase before meiosis I beginsarrow_forward
- When a germ cell undergoes meiosis, which event would MOST likely result in four aneuploid daughter cells? A. misalignment of the chromosomes during metaphase I B. misalignment of the chromosomes during anaphase I C. misalignment of the chromosomes during metaphase II D. misalignment of the chromosomes during anaphase IIarrow_forwardIn eukaryotic cells, which occurs during the prophase of mitosis? A. appearance of the nuclear envelope B. breakup of the nuclear envelope C. replication of DNA D. separation of sister chromatids E. duplication of chromatidsarrow_forwardWhich of these things happens in meiosis but Not mitosis? A. sister chromatids separate from each other B. diploid daughter cells are formed C. homologous chromosomes pair uparrow_forward
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