Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 13.2, Problem 3CC
WHAT IF? → A certain eukaryote lives as a unicellular organism. but during environmental stress. it produccs gametes The gametes fuse, and the resulting zygote undergoes meiosis. generating new single cells. What type of organism could this be?
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What do the structures A and B represent ?
A
O Homologous chromosomes
O Non-homologous chromosomes
O Non-sister chromatids
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Review Concept 12.1 Cell Division. Match the term and its description. Each term can only be used once.
All the DNA in a cell is called its
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Material of chromosome, a complex of DNA ani protein is
referred as
sister chromatids
These nonreproductive cells or body cells are called
somatic cells
gametes
This duplicated chromosome attached along thcir lengths by centromere
cohesins. each contain two
cell division
This is the narrow "waist" of the duplicated chromosome
where the two sister chromatids are attached.
chromatin
genome
Plasmogamy is the fusion of(a) two haploid cells including their nuclei.(b) two haploid cells without nuclear fusion.(c) sperm and egg.(d) sperm and two polar nuclei.
Please try to break the solutions into as many steps as practically possible and the steps should come one by one and they should be short and crisp and plagiarism-free.
Chapter 13 Solutions
Campbell Biology (10th Edition)
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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- Alternation of generations describes which of the following? The haploid form can be multicellular; the diploid form is unicellular The haploid form is unicellular; the diploid form can be multicellular Both the haploid and diploid forms can be multicellular Neither the haploid nor the diploid forms can be multicellular.arrow_forwardPlz asaparrow_forwardA pollen grain of corn with nuclei labeled M, N, O fertilized an embryo sac with nuclei labeled R, S, T, U, V, W, X, & Y, as shown below: (10 pts) 0 N M tube nucleus antipodals R U X egg nucleus S V W T Y synergids ** M is tube nucleus; RST are antipodals; X is egg nucleus; WY are synergids a. Which of the 5 combinations could be found in the embryo? (1) MNO (2) NOX (3) UVN (4) MW (5) OX. What is the basis of your choice? b. Which of the above combinations could be found in the endosperm layer of the seed? Why? C. Which of the nuclei, if any, in the pollen grain would contain genetically identical sets of chromosomes? Give basis of your answer. d. Which of the nuclei in the embryo sac would be chromosomally and genetically identical? Why? e. Which of the nuclei in these two gametophytes will have no descendants in the mature seed?arrow_forward
- WHAT IF? What would the human life cycle be likeif we had alternation of generations? Assume that themulticellular diploid stage would be similar in form to anadult human.arrow_forwardExercise Observe the diagram below and answer the following questions: Image Source: Wikimedia Commons 18₂1)-(²) (Cr)-(1 1. Which process is represented in these diagrams? Mitosis or meiosis? Explain your answer. 2. How many chromosomes did the cell start with? 3. How many chromosomes are present at the end of division I? 4. How many chromosomes are present in each cell at the end of division II? Homologous Chromosomes 5. Explain how meiosis results in UNIQUE cells. 6. Is this cell division occurring in a plant cell or an animal cell? What is the main difference between the two divisions?arrow_forwardPlease ASAP Consider a diploid species with a deploid number 2. Show your work and explain your part. A. If a typical haploid gemete from this species contains DNA with a mass of 36 picograms of DNA would be in a typical somatic cell in G1 of the cell cycle?arrow_forward
- the best posSIDE 1. After a parent cell with 16 chromosomes (or 8 pairs) goes through mitosis, each daughter cell will have how many chromosomes? A) 64 B) 32 C) 16 D) 8 E) 4arrow_forward???arrow_forwardAlternation of generations means that plants produce: only haploid multicellular organisms only diploid multicellular organisms only diploid multicellular organisms with single-celled haploid gametes both haploid and diploid multicellular organismsarrow_forward
- How does a haplontic plant population maintain genetic diversity? Zygotes are produced by random fusion Gametes are created through meiosis Diploid spores undergo independent assortment during mitosis The zygote undergoes meiosis to generate a haploid sporophyte.arrow_forwardFigure 6.4 Which of the following is the correct order of events in mitosis? a. Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the initotic spindle. The nucleus re-forms and the cell divides. The sister chromatids separate. b. The kinetochore becomes attached to the mitotic spindle. The sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus re-forms and the cell divides. c. The kinetochore becomes attached to metaphase plate. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus re-forms and the cell divides. d. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. The kinetochore breaks apart and the sister chromatids separate. The nucleus re-forms and the cell divides.arrow_forwardWhich is a common chromosome configuration during prophase, metaphase, and anaphase? • Chromosomes materialize as sister chromatids in all stages of mitosis stay in its condensed form during the mentioned stages of mitosis. Chromosomes Chromosomes seem to be with its homologous pair all throughout the cell's life cycle O Chromosomes appear as single chromatids in all of the mentioned stages of mitosis.arrow_forward
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Cell Division - Mitosis and Meiosis - GCSE Biology (9-1); Author: Mr Exham Biology;https://www.youtube.com/watch?v=w7vp_uRA8kw;License: Standard YouTube License, CC-BY