BIOLOGY W/ MASTERING >C<
10th Edition
ISBN: 9781269904889
Author: Campbell
Publisher: PEARSON C
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Textbook Question
Chapter 13, Problem 2TYU
The two homologs of a pair move toward opposite poles of dividing cell during
(A) mitosis
(B) meiosis I
(C) meiosis II.
(D) fertillzation.
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A) At the end of meiosis I, how many chromosomes are in each cell?
B) Are the cells haploid or diploid?
C) Are the chromosomes of the meiosis I products replicated or nonreplicated?
D) During which phase in meiosis I would crossing over have occurred?
. If you observed a dicentric bridge at meiosis, what rearrangement would you predict had taken place?
In experiment of Following chromosomal DNA movement through meiosis, what is the trial 1 and trial 2 meiotic division beads diagram for prophase l, metaphase l, anapahse l, telophase l, prophase ll, metaphase ll, anaphase ll, telophase ll, and cytokinesis?
Chapter 13 Solutions
BIOLOGY W/ MASTERING >C<
Ch. 13.1 - MAKE CONNECTIONS Using what you know of gene...Ch. 13.1 - How does an asexually reproducing eukaryotic...Ch. 13.1 - WHATIF? A horticulturalist breeds orchids, trying...Ch. 13.2 - MAKE CONNECTIONS In Figure 13.4. how many DNA...Ch. 13.2 - VISUAL SKILLS In The karyotype shown in Figuro...Ch. 13.2 - WHAT IF? A certain eukaryote lives as a...Ch. 13.3 - MAKE CONNECTIONS Comparc tho chromosomes in a...Ch. 13.3 - WHAT IF? After the synaptonemal complex...Ch. 13.4 - What is the original source of Variation among the...Ch. 13.4 - The diploid number for fruit flies is 8, and the...
Ch. 13.4 - Prob. 3CCCh. 13 - Explain why human offifuing resemble their parents...Ch. 13 - Compare the life cycles of animals and plants,...Ch. 13 - Prob. 13.3CRCh. 13 - Prob. 13.4CRCh. 13 - A human cell containing 22 autosomes.and a Y...Ch. 13 - The two homologs of a pair move toward opposite...Ch. 13 - Meiosis II is similar to mitosis in that (A)...Ch. 13 - Prob. 4TYUCh. 13 - If we continue to follow the cell lineage from...Ch. 13 - DRAW IT The diagram shows a cell in meiosis. (a)...Ch. 13 - Explain how you can tell that the cell in question...Ch. 13 - EVOLUTION CONNECTION Many species can reproduce...Ch. 13 - SCIENTIFIC INQUIRY The diagram in quest ion 6...Ch. 13 - Prob. 10TYUCh. 13 - SYNTHESIZE YOUR KNOWLEDGE For selected answers,...
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- It is possible that an alternative mechanism for generating germ cells could have evolved. Consider meiosis in a germ cell precursor (a cell that is diploid but will go on to make gametes). If the S phase were skipped, which meiotic division (meiosis I or meiosis II) would no longer be required?arrow_forwardIf a dog cell (2n = 78) enters meiosis, how many chromosomes will be present in each daughter cell at the end of.... -...meiosis I? -...meiosis II?arrow_forwardIn a zygote that begins with a complement of two homologous chromosomes pairs, A and a, and B and b: a. What chromosome compliments would you find in each somatic cells during growth? b. What combinations chromosomes would you expect to find in the gametes if the individual becomes an adult?arrow_forward
- In a zygote that begins with a complement of two homologous chromosomes pairs, A and a, and B and b: a.What chromosome compliments would you find in each somatic cells during growth? b.What combinations chromosomes would you expect to find in the gametes if the individual becomes an adult?arrow_forwardin the expermient of following chromosomal dna movement through meiosis, how many chromosomes were present when meiosis I started? How many nuclei are present at the end of meiosis ll? How many chromosomes are in each? What is the ploidy of the DNA at the end of meiosis l? What about at the end of meiosis ll? How are meiosis l and meiosis ll different? List two reasonarrow_forwardwhat part of interphase II is crucial in meiosis for the producttion of haploid cells?arrow_forward
- If both chromatids in meiosis II move to the same pole in one of the two dividing cells, what will be the “ploidy” of the gametes? A. All four gametes will have n chromosomes. B. Two gametes will have n chromosomes, one will have n+1 chromosomes, and one will have n-1 chromosomes. C. Two gametes will have n+1 chromosomes, and two will have n-1 chromosomes. D. All four gametes will have 2n chromosomes.arrow_forwardIt is possible that an alternative mechanism for generating germ cells could have evolved. Consider meiosis in a germ cell precursor (a cell that is diploid but will go on to make gametes). If the S phase were skipped, which meiotic division (meiosis I or meiosis II) would no longer be required? Explain.arrow_forwardAt the end of meiosis in humans, four gametes are produced that are: A. Genetically identical to each other and to the parent cell B. Genetically identical to each other but genetically different from the parent cell C. Genetically different from each other and the parent cell D. Genetically identical to the parent cell from different from each otherarrow_forward
- If a diploid organism has 14 chromosomes (2n=14) a. How many chromosomes will its gametes have? b. After meiosis I during gamete formation, how many chromosomes are in each daughter cell? c. After meiosis I during gamete formation, how many chromatids are in each daughter cell?arrow_forwardIn the process of Oogenesis in animal cells, will the genotype of the second polar body (derived from meiosis II) always be identical to that of the ootid? Why or why not?arrow_forwardMale honeybees, which are haploid, produce sperm by meiosis.Explain what unusual event (compared with other animals) mustoccur during spermatogenesis in honeybees to produce sperm.Does this unusual event occur during meiosis I or meiosis II?arrow_forward
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