for a specific trait is located on a sex chromosome‚ resulting in sexually dependent inheritance of the trait (Houghton Mifflin Company 2009). As the first sex-linked gene was found in Drosophila melanogaster (Ladiges‚ Pauline Y 2012) it is appropriate to use them in the study to determine how sex-linked chromosomes effect the offspring. By crossing the male and female Drosophila with different traits we observed the F1 generation and how sex-linked chromosomes were carried into the F1 generation as
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Make-up test study guide Test 1: 1. 3 categories of natural sciences a. biology: microbiology b. physical: chemistry c. applied: medicine 2. relevant steps to scientific method a. observation b. hypothesis c. experimentation d. conclusion e. extra: theory 3. Science: objective‚ testable‚ fact; non-science: subjective‚ untestable‚ opinions 4. Life is is a characteristic that distinguishes objects that have signaling and self-sustaining processes from those that do not‚ a. Characteristics:
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Is gene therapy the most effective way to treat depression? What really is depression? The term ‘depression’ can be defined in two different ways: 1. Severe despondency and dejection‚ accompanied by feelings of hopelessness and inadequacy. 2. A condition of mental disturbance‚ typically with lack of energy and difficulty in maintaining concentration or interest in life.1 Majority of people believe that depression is somewhat trivial and is not regarded as a genuine health condition‚ but
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Biology Midterm Review Sheet *** This is a general review sheet. It covers the main concepts from each chapter. You should also review your notes‚ vocab notecards‚ quizzes‚ tests‚ and labs to thoroughly prepare for this exam. The midterm will consist of 80 multiple choice and 8 free response questions. Note: For the midterm you will need a blue or black pen‚ a pencil‚ and a calculator. What you should focus on from the textbook: Unit 1- Introduction to Biology (ch. 1) Independent vs
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Results: In Allium cepa‚ the cell walls surrounding the cells were generally a rectangular shape and somewhat in columns. The cell walls were very distinct because they were dark purple. Most of the cells were in interphase. Here‚ the nucleus could clearly be seen‚ taking up about one third of the space inside the cell. Most cells in interphase had one nucleolus inside the nucleus‚ but some had multiple. The nuclei were pink because of the stain and the nucleoli were a much darker pink. The cytoplasm
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2.3.1 Organelle Structure and function nucleus enclosed in double membrane with pores contains chromosomes with genes made of DNA to control protein synthesis ribosomes made of RNA and protein free in cytoplasm or attached to RER site of protein synthesis rough endoplasmic reticulum interconnected sacs with ribosomes attached transport proteins to other parts of cell smooth endoplasmic reticulum synthesis of lipids and steroids mitochondria double
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Advanced Biology Final Exam / Fall 2011 Short Answer 1. Which of the following is a false statement regarding deoxyribonucleic acid (DNA)? 2. Which of the following properties or processes do we associate with living things? 3. Which component is not directly involved in translation? 4. The anticodon of a particular tRNA molecule is 5. Which of the following types of mutation‚ resulting in an error in the mRNA just after the AUG start of translation‚ is likely to have the
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Medical Benefits and Consequences in Genetic Engineering Today scientists are experimenting with gene therapy as a way to permanently help people who have hemophilia and other inherited diseases. Gene therapy involves inserting healthy genes into human cells to correct or prevent diseases. When genes are introduced into body cells other than eggs and sperm‚ this is called somatic cell gene therapy. Any effects are limited to the person receiving the therapy as the new genes are not passed on
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fertilized egg‚ regeneration‚ asexual reproduction‚ and maintenance or repair of body parts. All of this happens through mitotic cell division. Meiosis results in formation of gametes (in animals) or spores (in plants). Their cells have half the chromosome number of the parent cell. Meristems are
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Describing chromosomes have been known as structures containing genes that control phenotypic traits that are transmitted through gametes to future offspring. A major piece of evidence supporting this was the Henry-Chase experiment. In 1952‚ Alfred Hershey and Martha Chase published the results of their experiment observations of the process leading to phage reproduction using E. coli cells. Under their electron micrographs it was revealed that the phages exterior structures is formed with a hexagonal
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