The Cloning of Dolly (Sheep) Natural Sciences – FES 150 Table of Contents INTRODUCTION 3 WHAT IS CLONING? 3 THERAPEUTIC CLONING 3 REPRODUCTIVE CLONING 5 RECOMBINANT CLONING 6 THE BIRTH OF DOLLY (SHEEP) 7 ANNOUNCEMENT TO THE WORLD 8 DOLLY’S FAMILY 9 WAS DOLLY ALREADY “OLD” AT BIRTH? 9 DOLLY’S ARTHRITIS 9 DOLLY’S FINAL ILLNESS 10 WHY WAS DOLLY IMPORTANT? 11 WHAT IS THE LONGTERM SIGNIFICANCE OF DOLLY? 11 DOLLY’S FACT SHEET 12 REFERENCES 13 INTRODUCTION The
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have but not all)‚ protection of the embryo‚ alternation of generations lifecycle. All plants are thought to have evolved from a green algal- like ancestor. The first land plants evolved approximately ____________ million years ago. Alternation of Generations lifecycle. Label the diagram below with the terms listed in the box Meiosis Fertilization Spores Haploid multicellular form (HF) Diploid multicellular form (DF) Zygote Embryo Gametes (egg + sperm) 1n 2n
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is carried out (rough gist): Parents and doctors can now screen embryos for genetic disorders and select healthy embryos. Designer baby technology or reproductive genetics combines genetic screening and engineering1 processes with in vitro fertilization2 (IVF). This process is known as Pre-implantation genetic diagnosis (PGD). Steps: 1. Creating an Embryo with In-vitro fertilization (IVF). 2. Removing a single cell from that embryo within the first 5 days of creation 3. Genetically testing the
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mixing the woman’s egg and the man’s sperm outside of the woman’s body‚ usually in a petri dish. Invitro fertilisation literally means ‘fertilisation in glassware’. If the fertilisation is successful‚ the formed embryo is transferred to the woman’s uterus after 2-5 days. Usually‚ multiple embryos are transferred to improve chances of implantation and pregnancy. Australia’s first ‘test-tube baby’ was Candice Reed‚ born on 22nd June 1980. IVF is appropriate in certain circumstances‚ including: •
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studies. The article wants opinions on what “ethical” really is when it comes to embryos. In order to contribute to and relate to this site‚ readers will have to have knowledge on human developments and ethicality. Since this could be a touchy topic for some‚ and many people have strong opinions on this topic‚ readers need to be able to understand what the discussion is about. To some people‚ just keeping an embryo alive for two weeks could be unethical‚ which others would highly disagree. Purpose
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from any other medical technology. Research of embryos is required before the procedure to quantify and reduce the risks of the procedure. In Britain‚ embryo research is permitted until its fourteenth day of development. Britain‚ along with many Western countries is actively engaged in embryo research. Thousands of ‘spare’ embryos are generated each year by IVF procedures and destroyed. Alternatively‚ these embryos can be used for the purpose of embryo research. A further reason why cloning should
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Biology: Research Task and Oral PresentationResearch Task:1.Describe some mechanisms found in Australian fauna to ensure:•Fertilisation•Survival of the embryo and of the young after birthFertilisation is the fusion of haploid sex cells in the action of sexual reproduction. It is often a difficult process as:• careful timing is required: both female and male gametes need to be produced and released at the same time• arrangements need to be made to bring the gametes together• A watery medium is always
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are derived from embryos that develop from eggs that have been fertilized in vitro or at an in vitro fertilization clinic which are then donated for research purposes with informed consent of the donors. They are not derived from eggs fertilized in a woman ’s body contrary to the belief of some. The pros and cons of stem cell research come to the surface when we examine source of stem cells - embryonic cells. Embryonic stem cells are extracted directly from an embryo before the embryo ’s cells begin
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extraordinary lengths to keep secret the very existence of their adult clones as well as the whole operation. After watching the movie I do understand why on April 2002‚ President Bush warned that cloning will lead to experimental human beings‚ "embryo farms‚" and "a society in which human beings are grown for spare body parts and children are engineered to custom specifications.” The Island dramatizes the truth of his prediction. This movie left me with several questions that plague me
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Introduction Reproductive success is measured primarily by pigs produced per sow per year and is dependent upon both far rowing rate and litter size. In order to achieve optimal reproductive rates‚ both the anatomical and physiological workings of the reproductive system must function properly. A basic understanding of the anatomical and physiological function of the female pig reproductive system can aid producers in anticipating and troubleshooting reproductive problems‚ and in facilitating decisions
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