inspecting the amount of genetic materials in fruits with different numbers of chromosomes. In the experiment‚ we mashed up a strawberry/kiwi fruit (See appendix 1 figure 2) added extraction butter and ethanol to extract the DNA. A chromosome is a long thread-like cluster of genes in the nucleus. DNA (deoxyribonucleic acid)‚ a self-replicating material which is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information. Genes‚ a unit of heredity
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What is Turner’s syndrome? • A genetic disorder which only affects and occurs in females • It is a result of only one X chromosome present in the gamete (monosomy X ) • T.S can also occur if one of the sex chromosomes is partly missing or rearranged • This missing chromosome is responsible for the developmental affects • There is an extremely small chance of the fetus actually surviving How is a person diagnosed? • A person can be diagnosed by taking a sample of blood‚ amniotic fluid or
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Observing Mitosis and Meiosis on Cell Specimens Name: Low Celine Tables of Content…………………………………………………………………………….ii List of Illustrations…………………………………………………………………………… iii Synopsis………………………………………………………………………………………. iv 1. Objectives of Experiment………………………………………………………………… 1 2. Introduction……………………………………………………………………………….1 3. Theory…………………………………………………………………………………….. 2 4. Procedures………………………………………………………………………………... 3 5.1 Preparation of Onion Root
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How did the info in my DNA become my traits? This is a question that has been asked by many over the course of history.To answer this question we need to answer three essential questions‚ the first‚ how did we get our DNA‚ how did we go form one cell to trillions‚ and how did DNA become our traits. There is one essential driver to all of this‚ DNA‚ to understand DNA‚ we need to know what DNA is. DNA is two strands that contain genetic information in four bases‚ adenine‚ guanine‚ cytosine and thymine
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Victoria Haskins Biology Honors Mr. Kelly March 6th‚ 2017 Edwards Syndrome Edwards syndrome‚ also known as Trisomy 18‚ is a condition caused by a mistake in meiotic cell division resulting in an extra chromosome 18 in a developing baby (Source 1). This condition disrupts normal development‚ potentially fatally‚ even before birth (Source 1). Major characteristics of the disorder include a delay in growth‚ a low birth weight‚ and other major medical complications (Source 1‚ Source 3). Professor of
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Assortment occurs Linked Genes X-linked trait (or sex-linked) Found on the X chromosome Why important? In males → x-linked traits are often expressed‚ because have only 1 x=chromosome. And no corresponding gene on the Y-chromosome In females → if X-linked trait is recessive → masked by dominant allele on other chromosome (females are carriers for the trait) Linked genes -two or more genes found on the same chromosome -if the genes are linked‚ they would always be transmitted together but this
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4.1.1 State that eukaryotic chromosomes are made of DNA and proteins 4.1.2 Define gene‚ allele and genome Gene: | Heritable factors that control specific characteristics | Allele: | One specific form of a gene (differing form other alleles by one or few bases‚ occupying the same gene locus as other alleles of that gene) | Genome: | Whole genetic information of the organism | Chromosomes are made of DNA and protein 4.1.3 Define gene mutation * Gene mutation is the change in the base
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specifically our chromosomes. Many times‚ parents inadvertently pass genes on to their children through their DNA that may contribute to developmental disorders such as Down Syndrome. In this paper‚ I will explain the role of genetics and how it plays a part in development. I will also explain how the genes of two parents can influence the traits and characteristics of their offspring. Every person has genes and chromosomes located in every cell of their body. Those genes and chromosomes are what make
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also affects how many chromosomes that each mother cell has. Somatic cells can have either a haploid or diploid of chromosomes. The number of chromosomes in the mother cell are duplicated in the new daughter cells‚ so both mother cell and daughter cell have an equal number of chromosomes. Meiosis’ gamete cells are found only with a diploid of chromosomes. The mother cell will then divide leaving its four daughter cells with a haploid of chromosomes. This is because the chromosomes of a female and male
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telophase‚ prophase. D. telophase‚ prophase‚ anaphse‚ metaphase. _______13. Chromosomes are replicated (copied) during: A. mitosis. B. cytokinesis. C. S phase. D. G1 phase. _______14. Chromatin condenses into chromosomes during: A. prophase. B.
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