Introduction To Genetic Analysis
12th Edition
ISBN: 9781319114787
Author: Anthony J.F. Griffiths, John Doebley, Catherine Peichel, David A. Wassarman
Publisher: W. H. Freeman
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Chapter 3, Problem 66P
Summary Introduction
To determine: The introduction of radioactivity by injection into the anthers at the S phase before meiosis.
Introduction. Interphase is the period in which the cell is not undergoing any divisional changes but undergoes preparatory stage by forming proteins and enzymes for cell division. The interphase does not form the portion of the cell cycle although it helps the cell synthesize proteins and prepares itself for the division.
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which of these could lead to the mistake evident in the karyotype?
A) a failure of cytokinesis after meiosis I in gamete formation
B) a nondisjunction in meiosis II in gamete formation
C) crossing over in meiosis ! in gamete formation
D) fertilizaton by two sperm in zygote formation
Please provide an illustration of the stages of meiosis of Ascaris lumbricoides: Anaphase I, Telophase I, Prophase I, Metaphase II, Anaphase II, and Telophase II
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 3 Solutions
Introduction To Genetic Analysis
Ch. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Prob. 3PCh. 3 - Prob. 4PCh. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7PCh. 3 - Prob. 8PCh. 3 - Prob. 9PCh. 3 - Prob. 10P
Ch. 3 - Prob. 11PCh. 3 - Prob. 12PCh. 3 - Prob. 13PCh. 3 - Prob. 14PCh. 3 - Prob. 15PCh. 3 - Prob. 16PCh. 3 - Prob. 17PCh. 3 - Prob. 18PCh. 3 - Prob. 19PCh. 3 - Prob. 20PCh. 3 - Prob. 21PCh. 3 - Prob. 22PCh. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Prob. 25PCh. 3 - Prob. 26PCh. 3 - Prob. 27PCh. 3 - Prob. 28PCh. 3 - Prob. 29PCh. 3 - Prob. 30PCh. 3 - Prob. 31PCh. 3 - Prob. 32PCh. 3 - Prob. 33PCh. 3 - Prob. 34PCh. 3 - Prob. 35PCh. 3 - Prob. 36PCh. 3 - Prob. 37PCh. 3 - Prob. 38PCh. 3 - Prob. 39PCh. 3 - Prob. 40PCh. 3 - Prob. 41PCh. 3 - Prob. 42PCh. 3 - Prob. 43PCh. 3 - Prob. 43.1PCh. 3 - Prob. 43.2PCh. 3 - Prob. 43.3PCh. 3 - Prob. 43.4PCh. 3 - Prob. 43.5PCh. 3 - Prob. 43.6PCh. 3 - Prob. 43.7PCh. 3 - Prob. 43.8PCh. 3 - Prob. 43.9PCh. 3 - Prob. 43.10PCh. 3 - Prob. 43.11PCh. 3 - Prob. 43.12PCh. 3 - Prob. 43.13PCh. 3 - Prob. 43.14PCh. 3 - Prob. 43.15PCh. 3 - Prob. 44PCh. 3 - Prob. 45PCh. 3 - Prob. 46PCh. 3 - Prob. 47PCh. 3 - Prob. 48PCh. 3 - Prob. 49PCh. 3 - Prob. 50PCh. 3 - Prob. 51PCh. 3 - Prob. 52PCh. 3 - Prob. 53PCh. 3 - Prob. 54PCh. 3 - Prob. 55PCh. 3 - Prob. 56PCh. 3 - Prob. 57PCh. 3 - Prob. 58PCh. 3 - Prob. 59PCh. 3 - Prob. 61PCh. 3 - Prob. 62PCh. 3 - Prob. 63PCh. 3 - Prob. 64PCh. 3 - Prob. 65PCh. 3 - Prob. 66PCh. 3 - Prob. 67PCh. 3 - Prob. 70PCh. 3 - Prob. 1GSCh. 3 - Prob. 2GSCh. 3 - Prob. 3GS
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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
- In the following diagram, designate each daughter cell as diploid (2n) or haploid (n).arrow_forwarda)Draw a lily pollen grain in anaphase of meiosis II. b)How many gametes (sperm) will be in the pollen grain when it is completearrow_forwardThe four daughter cells pictured below resulted from: A) normal mitosis B) fertilization with a normal sperm C) normal meiosis D) meiosis with nondisjunction during meiosis I E) meiosis with nondisjunction during meiosis IIarrow_forward
- 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_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_forwardIn Sordaria, diploid cells heterogyzous for the gene for spore color undergo meiosis and recombination occured between the nonsister chromatids. Explain why we should see an equal number of ascus with a 2:2:2:2 pattern and a 2:4:2 pattern ?arrow_forward
- If meiosis of a diploid organism produces haploid cells, then how is a diploid offspring generated? a) Crossing over between two haploid gametes b) DNA replication in haploid gametes c) fertilization involving two haploid gametes d) Independent assortment of haploid gametesarrow_forwardA dihybrid has the genotype Aabb. Which of the following best represents the chromosomes in a cell at the beginning of meiosis phase 2? (Picture of cells attached) A) Cell G B) Cell H C) Cell K D) Cell M E) Cell Parrow_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
- If one nondisjunction event occurred during meiosis II, you would expect the four resulting gametes from a single cell to have _________ chromosomal complements (where n = haploid chromosome number). A) n+1, n+1, n, n B) n+1, n+1, n-1, n-1 C) n+1, n-1, n, n D) n, n, n, narrow_forwardFor 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_forwardz e 50 μm Figure 3. Grasshopper testis with differential staining and viewed under a microscope. Encircle the cell and label the specific stage in the meiosis it displays. Identify as many as you can witha minimum of two cells representing different stages. Make sure to specify whether the stage belongs to meiosis I or II. If you identify a cell at prophase I, then specify the substage.arrow_forward
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