Three observations of child development. This is an assignment consisting of three observations pertaining to a child’s development in three core areas‚ specifically‚ a young person’s social‚ emotional and physical maturity. Firstly it contemplates the social development of a four year old boy in an educational nursery setting‚ via an observation utilizing the narrative technique. Secondly the intellectual (cognitive) development of a five year old girl is reflected upon in a home setting‚ using
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Interphase Prophase I Early Prophase I D.N.A coils tightly and individual chromosomes become visible as single structures Homologous chromosomes become associated in synapsis. Each pair of chromosome is called a bivalent. Centrioles divide and move to the opposite poles of the cell‚ and spindles start to form Late Prophase I The bivalents duplicate to form tetrads (four-chromatid groups).The nuclear membrane disintegrates. Chromosomes join at points called chiasmata where crossing over
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Variation plays a vital role in human survival. Variation occurs in the process of meiosis. Meiosis is the process in which human sex cells‚ called gametes‚ are produced. Meiosis starts with a parent cell‚ called a diploid‚ replicating its DNA. After the DNA is replicated‚ the chromosomes line up in the middle of the cell where each pair touches each other and genetic information from the alleles are shuffled and exchanged‚ a process called crossing-over. The crossing-over over of chromosomes results
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Introduction For a zygote to contain a diploid complement of chromosomes‚ the gametes‚ which fuse to form this zygote must contain half the number of chromosomes. This reduction of chromosome number occurs in two distinct sequential phases of meiosis‚ termed meiosis I and meiosis II. Both divisional sequences have sub-stages such as‚ prophase (I‚ II)‚ prometaphase (I‚ II)‚ metaphase (I‚ II)‚ anaphase (I‚ II)‚ and telophase (I‚ II) that is continued by cytokinesis (I‚ II)‚ which is not part of meiosis
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Biology homework 10.2 1. How are the cells at the end of meiosis different from the cells at the beginning of meiosis? Use the terms chromosome number‚ haploid‚ and diploid in your answer. A: Cells in the begining of meiosis has diploid cells‚ with a full amount of chromosomes. In the end of meisos‚ the four genetically different daughter cells are haploid (gametes)‚ they have half the number of chromosomes. Because of this‚ they are able to fuse with other gametes (ex. egg and sperm) to form
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Chapter 13—Chromosomal Rearrangements and Changes in Chromosome Number Reshape Eukaryote Genomes Fill in the Blank |1. |Events that reshape genomes by reorganizing the DNA sequences within one or more chromosomes are known as ____________________. | |Ans: |rearrangements | | |Difficulty: 2
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Meiosis is the separation of a diploid cell in which results in the production of four haploid daughter cells containing half the number of chromosomes that were found in the parent cells. For example‚ the starting number of chromosomes is 46‚ which are paired into groups of two making 23 pairs of chromosomes. The process of meiosis is broken down into two courses: meiosis I and meiosis II. Before the stage of meiosis‚ a cell must undergo a phase described as interphase. Interphase consists of three
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INTRODUCTION I. Have you ever wondered how the process of sexual reproduction begins in multi-cellular organisms such as ourselves? II. It all begins through a cell division process known as meiosis. III. I am currently a biology major at CSU-Pueblo looking to pursue a degree in wildlife biology. IV. During the process of meiosis‚ diploid cells split in half‚ forming four haploid cells‚ which each have a single set of chromosomes. These cells are called either gametes or sex cells. Female gametes
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LESSON #9 22a) There would be 3 chromosomes present in each of the cells that make up the stomach of mosquito. 22b) Interphase | b | Prophase | C | Metaphase | D | Anaphase | A | Telophase | E | 22c) There would be 3 chromosomes present in the sperm cells of a mosquito. 22d) Interphase | C | Prophase 1 | A | Metaphase 1 | I | Anaphase 1 | E | Telophase 1 | F | Prophase ii | H | Metaphase ii | B | Anaphase ii | G | Telophase ii
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Stage Number of Cells in Part 1 Number of Cells in Part 2 Interphase 11 9 Prophase 7 4 Metaphase 5 3 Anaphase 9 7 Telophase 4 3 Cytokinesis 2 2 Create a Graph that represents the time spent in each stage of the cell cycle. Stage Time Spent in the 1st stage Time spent in the 2nd stage Interphase 21% 25% Metaphase 13% 7% Anaphase 9% 16% Telophase 19% 18% Cytokinesis 20% 23% 18% 11% Hypothesis After researching‚ I predicted that I would see different numbers of cells (which
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