Homologous Chromosomes and Sister Chromatids (HC and SC): Clearly distinguish between HC and SC pairs. Your answer should include the following: a clear distinction between ‘chromatin’ and ‘chromosome’‚ and how this difference affects gene expression; simple line diagrams to illustrate the difference between non-replicated and replicated DNA inchromatin and chromosome forms; afull description of both HC and SC with a labeled diagram that includes gene/allele sequences for a heterozygote and ‘m’
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number of chromosomes and crossing over to get more gene combinations and fertilization‚ involving the fusion of two gametes and the restoration of the original number of chromosomes. 3. Distinguish between the following pairs of terms: Chromosome- structures that makeup DNA Chromatid- DNA wrapped around protein called histone Homologous chromosomes- same but separated Sister chromatids- same but connected by centromere Synapsis- the entire process of pairing two homologous chromosomes Chiasma-
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Chromosome is in the nucleus of every cell. Each chromosome is mostly made up of coiled DNA. Besides DNA‚ there are also proteins in each Chromosome. The interesting point is that in Chromosome‚ DNA tightly coiled a lot of times around proteins and it supports the basic structure of chromosome. The way that Chromosome forms motivates me to think of how DNA and proteins in the Chromosome relate to each other both in the aspect of location and the aspect of biology function. For the second question
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A Chromosome Study Lab An examination of the chromosomes of a cell under high magnification can give much information about an organism. Figure 1 shows the chromosomes of a somatic cell as they might appear in an organism if enlarged many times their natural size. A somatic cell is any cell making up the organism except for reproductive cells. In this investigation‚ it is expected that you: a. learn what a chromosome Karyotype is. b. prepare a Karyotype of chromosomes according to the instructions
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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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over occurs between homologous chromosomes. These are the pairs of chromosomes in an organisms body that carry genes for the same trait located at identical positions on the two chromosomes. Even though they carry the same gene they may‚ however‚ possess different alleles for the gene which result in different forms of the trait. Pre-Lab (3 points): 1. Draw a tetrad in the space below and label the following: centromeres‚ sister chromatids‚ homologous chromosomes. 2. What are the two elements
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Summary of Chromosome 6 by author Robin Cook: Chromosome 6 begins with the murder of an infamous Mafia figure‚ Carlo Franconi. His Mafia competitors are the number one suspects for the shooting‚ and these suspicions rise when Franconi’s body disappears from the morgue before the autopsy is carried out. Medical examiner Jack is confused and interested by the case‚ along with his partner Dr. Montgomery. However‚ their attention is sidetracked by the arrival of a mutilated‚ unidentifiable body that
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Generation Y is known as the generation that was born in the 1980s and 1990s‚ although experts do not agree on when this era started. The people who create Generation Y are often the children of baby boomers and are therefore called echo boomers or Generation X. Most of them are in their late teens or twenties and totally different from other generations. The most significant difference between generations X and Y are that X kids are often thought of as the "lost" generation raised at a time when
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ADVERTISING TO GENERATION Y: Members of Generation Y : the demographic loosely defined as those born between 1980 on the early end and 2000 on the high end are truly the product of the turbulent times in which they were reared‚ and present a challenge for marketers who dare target this shrewd and‚ yes‚ narcissistic generation. You’ve heard that they don’t watch TV‚ and you’ve probably been told that they don’t read that much. Your research tells you that you can’t target them through MTV anymore
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Generation Y: They’ve arrived at work with a new attitude By Stephanie Armour‚ USA TODAY They’re young‚ smart‚ brash. They may wear flip-flops to the office or listen to iPods at their desk. They want to work‚ but they don’t want work to be their life. Jennifer Lewis‚ 22‚ finds it awkward that older employees report expenses to her. By Eileen Blass‚ USA TODAY This is Generation Y‚ a force of as many as 70 million‚ and the first wave is just now embarking on their careers — taking their
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