Introduction to Genetic Analysis
11th Edition
ISBN: 9781464109485
Author: Anthony J.F. Griffiths, Susan R. Wessler, Sean B. Carroll, John Doebley
Publisher: W. H. Freeman
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Chapter 4, Problem 34P
Summary Introduction
To determine: The figure given represents mitosis, meiosis I, or meiosis II or is impossible for the given genotypes.
Introduction. The cell cycle is a type of cycle that takes place in human beings. It takes place, and hence replication, transcription, and translation take place when needed. It also leads to meiosis and mitosis. There are several steps in these two phases. Meiosis results in four daughter cells, whereas mitosis leads to the formation of two daughter cells.
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A diploid (2n) trihybrid individual with the genotype EeFfGg can make eight genetically different gametes.
Loci E/e and F/f are on chromosome 1 and locus G/g is on chromosome 2. Explain how a gamete containing the alleles e, f and g may be produced by meiosis. Refer specifically to meiotic events occurring during Prophase I, Metaphase I, Anaphase I and Anaphase II. (NB: remember to refer to the organism above).
An individual heterozygous for a reciprocal translocation possesses the following chromosomes:
A B • C D E F G
A B • C D V W X
R S • T U E F G
R S • T U V W X
Q. Diagram the alternate, adjacent-1, and adjacent-2 segregation patterns in anaphase I of meiosis.
Using the images of meiosis found in this microscope image of meiosis, create a biological drawing for any two stages of meiosis (prophase I or II, metaphase I or II, anaphase I or II, or telophase I or II). Both cells should be included in the same drawing.
Chapter 4 Solutions
Introduction to Genetic Analysis
Ch. 4 - Prob. 1PCh. 4 - Prob. 5PCh. 4 - Prob. 12PCh. 4 - Prob. 13PCh. 4 - Prob. 14PCh. 4 - Prob. 15PCh. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Prob. 19P
Ch. 4 - Prob. 20PCh. 4 - Prob. 21PCh. 4 - Prob. 21.1PCh. 4 - Prob. 21.2PCh. 4 - Prob. 21.3PCh. 4 - Prob. 21.4PCh. 4 - Prob. 21.5PCh. 4 - Prob. 21.6PCh. 4 - Prob. 21.7PCh. 4 - Prob. 21.8PCh. 4 - Prob. 21.9PCh. 4 - Prob. 21.10PCh. 4 - Prob. 21.11PCh. 4 - Prob. 21.12PCh. 4 - Prob. 21.13PCh. 4 - Prob. 21.14PCh. 4 - Prob. 21.15PCh. 4 - Prob. 21.16PCh. 4 - Prob. 21.17PCh. 4 - Prob. 21.18PCh. 4 - Prob. 21.19PCh. 4 - Prob. 21.20PCh. 4 - Prob. 21.21PCh. 4 - Prob. 21.22PCh. 4 - Prob. 21.23PCh. 4 - Prob. 21.24PCh. 4 - Prob. 21.25PCh. 4 - Prob. 21.26PCh. 4 - Prob. 22PCh. 4 - Prob. 23PCh. 4 - Prob. 24PCh. 4 - Prob. 25PCh. 4 - Prob. 26PCh. 4 - Prob. 27PCh. 4 - Prob. 28PCh. 4 - Prob. 29PCh. 4 - Prob. 30PCh. 4 - Prob. 31PCh. 4 - Prob. 32PCh. 4 - Prob. 33PCh. 4 - Prob. 34PCh. 4 - Prob. 35PCh. 4 - Prob. 36PCh. 4 - Prob. 37PCh. 4 - Prob. 38PCh. 4 - Prob. 38.1PCh. 4 - Prob. 38.2PCh. 4 - Prob. 38.3PCh. 4 - Prob. 38.4PCh. 4 - Prob. 38.5PCh. 4 - Prob. 38.6PCh. 4 - Prob. 38.7PCh. 4 - Prob. 38.8PCh. 4 - Prob. 38.9PCh. 4 - Prob. 38.10PCh. 4 - Prob. 38.11PCh. 4 - Prob. 38.12PCh. 4 - Prob. 38.13PCh. 4 - Prob. 38.14PCh. 4 - Prob. 38.15PCh. 4 - Prob. 38.16PCh. 4 - Prob. 38.17PCh. 4 - Prob. 38.18PCh. 4 - Prob. 38.19PCh. 4 - Prob. 38.20PCh. 4 - Prob. 38.21PCh. 4 - Prob. 38.22PCh. 4 - Prob. 38.23PCh. 4 - Prob. 38.24PCh. 4 - Prob. 39PCh. 4 - Prob. 40PCh. 4 - Prob. 41PCh. 4 - Prob. 42PCh. 4 - Prob. 43PCh. 4 - Prob. 44PCh. 4 - Prob. 45PCh. 4 - Prob. 46PCh. 4 - Prob. 47PCh. 4 - Prob. 48PCh. 4 - Prob. 49PCh. 4 - Prob. 50PCh. 4 - Prob. 51PCh. 4 - Prob. 52PCh. 4 - Prob. 53PCh. 4 - Prob. 54PCh. 4 - Prob. 55PCh. 4 - Prob. 56PCh. 4 - Prob. 57PCh. 4 - Prob. 58PCh. 4 - Prob. 59PCh. 4 - Prob. 60PCh. 4 - Prob. 62PCh. 4 - Prob. 63PCh. 4 - Prob. 64PCh. 4 - Prob. 65PCh. 4 - Prob. 66PCh. 4 - Prob. 67PCh. 4 - Prob. 68PCh. 4 - Prob. 69P
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- Consult Figure 4, which shows the distribution of chromosome segregation for a cell with genotype M/m; B/b. For each panel, state whether the illustration is possible for mitosis, meiosis I, meiosis II, or not possible for the genotype. Assume no crossing over. Panel A: Possible during mitosis Possible during meiosis I Possible during meiosis II Not possible for the stated genotype Panel B: Possible during mitosis Possible during meiosis I Possible during meiosis II Not possible for the stated genotypearrow_forwardComplete 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_forwardConsult Figure 4, which shows the distribution of chromosome segregation for a cell with genotype M/m; B/b. For each panel, state whether the illustration is possible for mitosis, meiosis I, meiosis II, or not possible for the genotype. Assume no crossing over. Panel C: Possible during mitosis Possible during meiosis I Possible during meiosis II Not possible for the stated genotype Panel D: Possible during mitosis Possible during meiosis I Possible during meiosis II Not possible for the stated genotypearrow_forward
- A diploid germ cell containing "2n" number of chromosomes undergoes meiosis to produce four daughter cells. If a nondisjunction of an autosome happens during meiosis I, what are the chromosomal complements of the four daughter cells? Below the four circles represent the four daughter cells. Please fill in the chromosomal number by choosing from n-1, n, or n+1. ooooarrow_forwardDuring metaphase I of meiosis, tetrads align along the metaphase plate independently of each other. Therefore, there is a random “shuffle” of maternal and paternal chromosomes in the resulting gametes.The following diagram demonstrates how this works in a diploid cell with four chromosomes . Because there are two pairs of chromosomes and each pair can align in one of two ways during metaphase I, the number of possible variations in the gametes produced is , or .For an organism that is , there are three pairs of chromosomes, so the number of possible variations in the gametes produced due to independent assortment in metaphase I is , or . In an organism with a haploid number of , how many possible combinations of maternal and paternal chromosomes can occur in its gametes? Select one: a. 72=49 b. 27=128 c.17=1 d. 214=16 384arrow_forwardPage 1 of 1 USING TWO DIFFERENT COLORS TO SIGNIFY THE MATERNAL AND PATERNAL CHROMOSOMES, DRAW THE RESPECTIVE CELLS IN EACH LABELED PHASE OF MITOSIS AND MEIOSIS. THE CHROMOSOME NUMBER WILL BE "4" AND SHOULD BE REPRESENTED AS TWO HOMOLOGOUS PAIRS. MAKE SURE YOU USE TWO DIFFERENT SIZES FOR EACH OF THE PAIRS. BELOW EACH PHASE, BRIEFLY DESCRIBE WHAT HAPPENS. MITOSIS MEIOSIS I Crossing over needs to be illustrated in one of the homologous pairs and carried through the remaining drawings METAPHASE ANAPHASE METAPHASE I MEIOSIS II Accurate number of cells are needed ANAPHASE I METAPHASE II ANAPHASE IIarrow_forward
- Assume that a diploid cell (2N=8) contains 4 pairs of chromosomes (3 pairs of autosomes and 1 pair of sex chromosomes) designated as 1m, 1p, 2m, 2p, 3m, 3p, Xm, and Xp where "m" stands for maternal origin and "p" stands for paternal origin. Which of the following is/are possibilities for the chromosomal composition of each of the 2 daughter cells following meiosis 1? 1m, 2m, 3m, Xm AND 1р, 2р, Зр, Хр O 1m, 2p, 3p, Xm AND 1p, 2m, 3m, Xp O 1m, 1p, 2m, 2p, 3m, 3p, Xm, Xp AND 1m, 1p, 2m, 2p, 3m, 3p, Xm, Xp O 1m, 2p, 3m, Xp AND 1m, 2p, 3p, Xmarrow_forwardComplete 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_forwardShown below are photomicrographs of Rhoeo tradescantia cells undergoing meiosis. Answer the following question for each of the photomicrographs: Identify the cytogenetic abnormality observed (ex. ring, chain, laggard, bridge). Identify the meiotic stage in which these aberrations are observed (as shown in the photomicrograph). Explain how these aberrations are formed and relate to the possible causal mutation(s). Will this result to sterile and/or fertile gametes? Explain.arrow_forward
- For an organism with 3 pairs of chromosomes (6 total chromosomes, 2n = 6), draw chromosome diagrams for the following phases of meiosis: prophase I, metaphase I, anaphase I, telophase I, prophase II, metaphase II, anaphase II & telophase II. Be sure to draw the correct number of chromosomes and the correct number of chromatids per chromosome. Use a different color to represent each chromosome type (for example, use blue to indicate all copies of chromosome 1, red for all copies of chromosome 2, and green for all copies of chromosome 3).arrow_forwardAn individual heterozygous for a reciprocal translocation possesses the following chromosomes: A B • C D E F G A B • C D V W X R S • T U E F G R S • T U V W X Q. Draw the pairing arrangement of these chromosomes in prophase I of meiosis.arrow_forwardUSING TWO DIFFERENT COLORS TO SIGNIFY THE MATERNAL AND PATERNAL CHROMOSOMES, DRAW THE RESPECTIVE CELLS IN EACH LABELED PHASE OF MITOSIS AND MEIOSIS. THE CHROMOSOME NUMBER WILL BE "4" AND SHOULD BE REPRESENTED AS TWO HOMOLOGOUS PAIRS. MAKE SURE YOU USE TWO DIFFERENT SIZES FOR EACH OF THE PAIRS. BELOW EACH PHASE, BRIEFLY DESCRIBE WHAT HAPPENS. MITOSIS ΜEIOSIS I MEIOSIS II Crossing over needs to be illustrated ACCURATE CELL NUMBER IS NEEDED МЕТАРНАSE ΑΝΑΡHASE МЕТАРНASEI ANAPHASE I МЕТАРНАSE II ANAPHASE IIarrow_forward
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