Plant Genetics JANICE NALBONE Abstract This experiment is being done to show Mendel’s rule of dominance that says certain alleles are dominant and others are recessive. To show this‚ we are using tobacco seeds‚ a monohybrid cross comparing only one trait color. We are also showing Mendel’s law of segregation with a Dihybrid cross comparing two traits of color and texture. Introduction
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4.3 Theoretical genetics 4.3.1 Define genotype‚ phenotype‚ dominant allele‚ recessive allele‚ co-dominant alleles‚ locus‚ homozygous‚ heterozygous‚ carrier and test cross * Genotype- the alleles of an organism * Phenotype- the characteristics of an organism * Dominant allele- an allele that has the same effect on the phenotype whether it is present in the homozygous or heterozygous state * Recessive allele- an allele that only has an effect on the phenotype when present in the
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(Final Version) Science Education Key Learning Area Biology Curriculum and Assessment Guide (Secondary 4 - 6) Jointly prepared by the Curriculum Development Council and the Hong Kong Examinations and Assessment Authority Recommended for use in schools by the Education and Manpower Bureau HKSARG 2007 (Blank page) Contents Page Preamble Acronym Chapter 1 1.1 1.2 1.3 1.4 1.5 Introduction Background Implementation of Science Subjects in Schools Rationale Curriculum Aims Interface with
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Animal Cell Cells are the beginning of everything. Every living thing is composed and made from cells. Cells are the smallest unit of organization that we know of. There are two major categories of cellular organization in eukaryotic cells. Those parts which are “membrane bound”‚ called organelles and those which are not “membrane bound”. Every aspect of the cell is important because each part or organelle’s structure is unique to its function. Non membrane bound organelles‚ are those which provide
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produces solid or semisolid foods with significantly lower water content. The concentration of liquid foods has three different methods; evaporation‚ membrane concentration‚ and freeze concentration. Evaporation usages gas liquid phase separation. It has the lowest capital cost and the maximum concentration for freeze concentration is more than 50 Brix. Membrane concentration can be used for separating components of foods on a molecular basis‚ where the foods are in solution and where a solution is separated
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Experiment 9/5 Voltaic cells AIM How the change the concentration of the electrolyte CuSo4 (solution of ions) affect the voltage of the electrochemical cell BACKGROUND An electrochemical cell is also called a voltaic cell‚ which derives electrical energy from redox reaction taking place within the cell. It consists of two different metals that are connected by a salt bridge. Eletrons always flow from anode to cathode‚ where anode is negative (reduction) and cathode is positive (oxidation)
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structure of these cells is a flying disk shaped like a donut‚ this is so maximum haemoglobin can be carried allowing maximum amount of oxygen to be transported. Sperm cells A sperm cell is the male reproductive cell that carries the male portion of chromosomes and deoxyribonucleic acid (DNA) information to be fused with the female egg or ovum. The sperm cell carries various amount of heredity information inside the cell nucleus. There are various ways in which sperm can be transmitted to the
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Cell Organelles Nucleus Its function is to control the cell’s activities and retain the chromosomes. The nucleus is bound by a double membrane‚ the nuclear envelope. The nuclear envelope has pores in it to allow the transport of mRNA. The cytoplasm like material is called nucleoplasm which contains chromatin (coils of DNA and histone proteins)‚ it is chromatin that condenses to form chromosomes during cell division. Within the nucleus is a small spherical body called the nucleolus which
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Lab 10: Cell Structure & Function Questions 1. For each structure identified‚ do you think its location affects its ability to function? Why or why not? (Hint: those buried deep in the cell probably do different things than those closer to the cell membrane) Structure does not affect function of the cells‚ cells have a particular structure that enables them to carry out their function in the best way. Everything in a cell is there to enable it to perform in the most efficient manner possible
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Issues in Biotechnology: The Way We Work With Life Dr. Albert P. Kausch life edu.us The Mechanics of DNA Lecture 1 Introduction and Overview - Biotechnology: Panacea or Pandora’s Box © life_edu Dr. Albert Kausch is Professor of Cell and Molecular Biology at the University of Rhode Island. He received his Bachelors’ degree from the State University of New York in Biological Sciences and both his Master’s and Ph.D. degrees from Iowa State University in Molecular‚ Cellular and Developmental Biology
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