Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 14.2, Problem 1CC
Refer back to the karyotype in Figure 14.1. In this micrograph, is each of the 46 objects a pair of sister chromatids?
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Chapter 14 Solutions
Principles of Biology
Ch. 14.1 - Researchers usually treat cells with drugs that...Ch. 14.1 - Researchers usually treat cells with drugs that...Ch. 14.1 - Refer back to Figure 13.13. How do checkpoint...Ch. 14.1 - A cell that is diploid has two chromosomes. pairs...Ch. 14.1 - In eukaryotes, DNA replication produces sister...Ch. 14.1 - Prob. 3TYKCh. 14.2 - Refer back to the karyotype in Figure 14.1. In...Ch. 14.2 - What are the functions of the three types of...Ch. 14.2 - Prob. 1TYKCh. 14.2 - Prob. 2TYK
Ch. 14.2 - Sister chromatids separate from each other during...Ch. 14.2 - With regard to chromosome composition, how does...Ch. 14.3 - Prob. 1CCCh. 14.3 - Prob. 2CCCh. 14.3 - What is the main reason for meiosis in animals?...Ch. 14.3 - In meiosis I, crossing over occurs during...Ch. 14.3 - Prob. 2TYKCh. 14.3 - Prob. 3TYKCh. 14.4 - Prob. 1CCCh. 14.4 - A chromosome in which the telomere is at one end...Ch. 14.4 - Prob. 2TYKCh. 14.4 - Prob. 3TYKCh. 14 - Prob. 1TYCh. 14 - Prob. 2TYCh. 14 - Checkpoints during the cell cycle are important...Ch. 14 - Prob. 4TYCh. 14 - Prob. 5TYCh. 14 - Prob. 6TYCh. 14 - Prob. 7TYCh. 14 - Prob. 8TYCh. 14 - Prob. 9TYCh. 14 - Prob. 10TYCh. 14 - Distinguish between homologous chromosomes and...Ch. 14 - The Oca2 gene, which influences eye color in...Ch. 14 - PRINCIPLES A principle of biology is that cells...Ch. 14 - Why is it necessary for chromosomes to condense...
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- In the following diagram, designate each daughter cell as diploid (2n) or haploid (n).arrow_forwardWhat is a sister chromatidarrow_forwardThe 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_forward
- Complete the following table for the number of chromosomes and chromatids per cell during the different stages of meiosis II for a 2n = 6 organism. NOTE: For telophase, consider the number of chromosomes/chromatids per cell after cytokinesis. Meiosis II #chromosomes/cell Prophase II Metaphase || Anaphase II Telophase II #chromatids/cellarrow_forwardThe Yellow Fever vector mosquito (Aedes Aegypti) is normally 2n = 8. Please draw the following diagrams and in each of your diagrams label the following (or note the absence of): a) a pair of homologous chromosomes b) a pair of sister chromatids A) A somatic cell in this organism undergoing prophase. B) A germ cell undergoing anaphase II.arrow_forwardThe long-nosed cusimanse is a diploid organism with n=18. According to wikipedia, the cusimanse has a weasel-shaped body with dark or reddish brown fur and weighs ~2 lbs at maturity. Laotia For each of the following, indicate the total number of chromosomes, the number of pairs of homologous chromosomes and the number of pairs of sister chromatids. Indicate if the cell in question is diploid or haploid and if the daughter cell will be diploid or haploid. A. A non-dividing skin cell Total number of chromosomes: Number of pairs of homologous chromosomes: Number of pairs of sister chromatids: boxe Diploid or haploid? B. A cell is metaphase of mitosis: Total number of chromosomes: Number of pairs of homologous chromosomes: Number of pairs of sister chromatids: Diploid or haploid? Daughter cell diploid or haploid? C. Cell in prophase meiosis I: Total number of chromosomes: Number of pairs of homologous chromosomes: Number of pairs of sister chromatids: Diploid or haploid? Daughter cell…arrow_forward
- Complete the following table for the number of chromosomes and chromatids per cell during the different stages of meiosis II for a 2n = 6 organism. NOTE: For telophase, consider the number of chromosomes/chromatids per cell after cytokinesis. Meiosis II #chromosomes/cell #chromatids/cell Prophase II Metaphase 11 Anaphase II Telophase IIarrow_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_forwardConsider the following two meiocytes in metaphase I, with crossover positions as indicated for cell A. Solid black lines indicate spindle microtubules. Assume blue chromosomes represents paternal chromosomes and green maternal chromosomes. F G N R A B D e g a B d E Cell A Cell B i) How many chromosomes and chromatids were present in cell A during the G1 phase? Please clearly specify chromosomes and chromatids in your answer. ii) For cell A, list all the gametes that will be produced from this cell. Give the alleles of each gamete contained within a set of brackets. You may ignore independent assortment. iii) For cell B, list all the gametes that will be produced from this cell given independent assortment. Give the alleles of each gamete contained within a set of brackets. You may assume that no crossing over would take place.arrow_forward
- In the following schematic drawing of a Holliday junction,one chromatid is shown in red, and the homologous chromatidis shown in blue. The red chromatid carries a dominant allelelabeled A and a recessive allele labeled b, whereas the blue chromatidcarries a recessive allele labeled a and a dominant allelelabeled B. Where would the DNA strands have to be cut to produce recombinantchromosomes? Would they be cut at sites 1 and 3, or at sites2 and 4? What would be the genotypes of the two recombinantchromosomes?arrow_forwardConsider the following DNA molecule (shown in the picture) and assume this is the DNA sequence of the entire chromosomes. list the amino acid sequences of the possible protein or proteins that could be produced from this DNA sequence what would be the DNA sequence of a sister chromatid generated from this chromosome sequence? (specify the 5' nd 3' ends)arrow_forwardMitosis produces 2 daughter cells that are identical to the starting cell. Explain how meíosis is different using this diagram to help you. 1) How many cells are created through meiosis? 2) Describe the chromosomes in each gamete at the end of meiosis? Are the set of chromosomes in a gamete identical to the starting cell like they are in mitosis? Are there the same number of chromosomes in each gamete as the starting cell? Starting cell's chromosomes: 1А, 1B, 2A, 2B Interphase After the S phase of interphase: 4 pairs of sister chromatids 1A 1A 1B 1B 2A 2A 2B 2B Meiosis has 2 rounds of cell division 1A, 1A, 1B, 1B, 2A 2B 2A 2B tv MacBook Air DII DD 80 888 F9 F10 F6 F7 F8 F4 F3 * #3 2$ % & 8 9 3 4 E T. Y F G J K * CO Rarrow_forward
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