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 38.13P
Summary Introduction
To determine: The place where meiosis take place in the Neurospora life cycle with diagram.
Introduction: Neurospora reproduces sexually and asexually and spends most of their lives as haploid organisms. There are three different sexual life cycles known as heterothallic, homothallic, and pseudohomothallic.
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A cat germ cell has a haploid number of 19 chromosomes.Complete the following table by stating the number of cells, the number of chromatids, and the number of chromosomes at the end of each of the following stages of meiosis and mitosis.
(Please note this is an emply chart, I'm unsure why it got declined last time because it is not graded)
Meiosis
Meiosis
Mitosis
Prophase I
Telophase I
Telophase
Number of cells
Number of Chromatids
Number of Chromosomes
Shown below is a photomicrograph of Rhoeo tradescantia cell undergoing meiosis. Answer the following question for the photomicrograph:
a. Identify the cytogenetic abnormality observed (ex. ring, chain, laggard, bridge)
b. Identify the meiotic stage in which these aberrations are observed (as shown in the photomicrograph)
c. Explain how these aberrations are formed
d. Will this result to sterile or fertile gametes? Explain.
Mitosis 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
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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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Picture name - Tradescantia spathacea meiotic cell. HPO (400x)Shown 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_forwardBelow is my drawing of a female oocyte in anaphase I of meiosis. Use this figure to answer the following questions. A W 8 S B How many total chromatids are in this cell? Rarrow_forwardMeiosis is defined as a ____. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a) type of cell division that is seen in all types of cells b) type of cell division that divides a somatic cell and produces 4 gamete cells c) type of cell division that divides a somatic cell and produces 2 gamete cells d) type of cell division that divides a gamete cell into 2 somatic cellsarrow_forward
- 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.arrow_forwardFor a plant cell, on a blank sheet of paper, make 1 drawing of each of the phases of Meiosis I and II. Identify 2 key occurrences of each phase.arrow_forwardA diploid cell undergoes meiosis to form the four gametes shown below. H OHhQq OhQ q Part 1 What is the genotype of the diploid cell? Hq OHHhhQQqq 99 HH H QQ Part 2 Arrange the chromosomes for the diploid cell as they must have lined up during metaphase I of meiosis in order to make the gametes shown above. The vertical dotted line represents the metaphase plate. hh q HH X Q h Q harrow_forward
- What are the major differences between mitosis and meiosis? Explain this both in terms of the different steps of each event and with regards to the final products of each event. Remember to mention the events which are unique to meiosis and why they are significant.arrow_forwardIf 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_forwardIn a particular dihybrid the two genes of interest, “A” and “B,” are located on different chromosomes. Which of the following diagrams does not represent a stage of meiosis in this organism? (Note: For each answer only some chromatids may be represented.)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_forwardWhat are the non-random events that occur during sexual reproduction (post-meiosis) in humans? Please be specific on naming the events.arrow_forwardShown below are photomicrographs of Rhoeo tradescantia cells undergoing meiosis. Answer the following question for each of the photomicrograph: a. Identify the cytogenetic abnormality observed (ex. ring, chain, laggard, bridge) b. Identify the meiotic stage in which these aberrations are observed (as shown in the photomicrograph) c. Explain how these aberrations are formed d. Will this result to sterile or fertile gametes? Explain.arrow_forward
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