PEARSON ETEXT FOR CAMPBELL BIOLOGY
12th Edition
ISBN: 9780135988046
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 5TYU
If we continue to follow the cell lineage from question 4, then the DNA content of a single cell at metaphase of meiosis II will be
(A) 0.25x.
(B) 0.5x.
(C) x.
(D) 2x.
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If the DNA content of a diploid cell in the G1 phase of the cellcycle is x, then the DNA content of the same cell at metaphaseof meiosis I will be(A) 0.25x. (B) 0.5x. (C) x. (D) 2x
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?
A diploid cell has 4C genetic material and 16 chromosomes at the start of cell division. Identify the:
(1) no. of chromosome per cell at S phase
(2) no. of pairs of homologous chromosomes per cell at Metaphase 1
(3) no. of chromosomes per cell at Anaphase 1
(4) amount of genetic material per cell after Meiosis 2
(5) amount of genetic material per cell after Meiosis 1
Chapter 13 Solutions
PEARSON ETEXT FOR CAMPBELL BIOLOGY
Ch. 13.1 - MAKE CONNECTIONS Using what you know of gene...Ch. 13.1 - Prob. 2CCCh. 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 - Prob. 3CCCh. 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 - Prob. 13.2CRCh. 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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- a. What type of cell division mitosis, meiosis I or meiosis II is shown in this figure? b. What is the diploid number of this organism? c. Provide labels for (i) and (ii)arrow_forwardimagine a giraffe whose diploid is 30. A) what # of chromosomes will be present in a somatic cell at prophase of mitosis? B) what will be the # of chromosomes present in a somatic cell at prophase 2 of meiosis?arrow_forwardimagine a giraffe whose diploid is 30. A)Under what circumstances would the giraffe go through a process of meiosis? . b) what will be the final result of this meiosis for the giraffe (# of cells + # of chromosomes/cells)arrow_forward
- The diagram below shows a cell during Meiosis II: a) What phase of Meiosis II is the cell in? How do you know? b) Assuming all of the chromosomes present during Meiosis II are shown in the figure above, how many chromosomes (counting homologous pairs as two chromosomes) does a gamete from this organism have? c) Draw the same cell during the same phase of Meiosis I. Label the elementsarrow_forwardIn a diploid cell in which 2n = 14, how many telomeresare there in each of the following phases of the cellcycle?(a) G1 (c) prophase of mitosis(b) G2 (d) telophase of mitosisarrow_forwardSuppose the diagram below shows a cell during metaphase Meiosis II: microtubule a) Label the elements of the figure. b) Assuming all of the chromosomes present during Meiosis II are shown in the figure above, how many chromosomes (counting homologous pairs as two chromosomes a cell from this organism have immediately after fertilization? Tne left Showarrow_forward
- If the amount (mass) of DNA in a diploid cell during G1 phase prior to meiosis I is 8 pg (picograms), how much DNA would be present in a daughter cell immediately following: A) meiosis I? B) meiosis II? (for your information, this cell will function as a gamete) HINT: Go through the process of meiosis one step at a time. DNA replication would double the amount of DNA in the cell, cell division divides the DNA into two daughter cells.arrow_forwardA diploid cell has 15 picograms of DNA in G₁ phase. If this cell is a germ line cell that undergoes meiosis, how much DNA will each daughter cell contain at the end of meiosis I? How much DNA will each daughter cell contain at the end of meiosis II? MI = 30 pg: MII = 15 pg O MI = 15 pg; MII = 15 pg MI = 7.5 pg; MII = 15 pg O MI = 15 pg: MII = 7.5 pgarrow_forwardConsider a diploid organism with three non-homologous chromosomes 1.) Which image depicts a cell in Anaphase of mitosis? (Refer to picture 1) 2.) Which image depicts a cell in prophase 1 of meiosis? (Refer to picture 2)arrow_forward
- What is the major difference between mitosis and meiosis I in a diploid organism? A) Sister chromatids separate in mitosis; homologous pairs of chromosomes separate in meiosis I. B) Sister chromatids separate in mitosis; homologous pairs of chromosomes separate in meiosis II. C) DNA replication takes place prior to mitosis, but not before meiosis I. D) Only meiosis I results in daughter cells that contain identical genetic information.arrow_forwardA) Give the diploid number of this organism. B) Is it mitosis or meiosis? Give two (2) elements on which you base your reasoning. C) Identify this mystery phase of the cell cycle. D) How many daughter cells will be produced at the end of the process and how many chromosomes (in numbers) will they contain? E) How does this process ensure the genetic variability of individuals of the species? Your answer must be based on two (2) different elements.arrow_forwardWhat is happening during this phase of meiosis? A.)Mitosis is complete and 4 diploid daughter cells have been produced. B.)Telophase II C.)Meiosis II is complete and 4 haploid daughter cells have been produced. D.)Meiosis I is complete and 4 diploid daughter cells have been produced E.)Meiosis II is complete and 4 diploid daughter cells have been producedarrow_forward
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