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Advanced Backcross Breeding
This lesson is a detailed explanation of the backcross breeding process. Variations based on whether backcrossing is performed with dominant, recessive, or multiple traits are discussed. Calculations associated with backcross breeding are explained.
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Backcross Breeding 1 - Basic Gene Inheritance
This lesson reviews the basics of gene inheritance. It compares plants that are homozygous, heterozygous, and hemizgous
for an allele and how gene expression is affected by the dominance of an allel...
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Backcross Breeding 2 - The Backcrossing Process
This lesson discusses the final stage of developing genetically engineered crops. The need for backcrossing, and the steps
of this breeding method are described. Yield lag, yield drag, and gene stac...
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Basic Techniques of Plant Tissue Cultures
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Breeding for Grain Quality Traits: The challenges of measuring phenotypes and identifying genotypes.
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Case of the Drought Resistant Genetically Engineered Corn Plant
This scenario accompanies the
online lesson, "Transpiration - Water Movement Through Plants", and is
designed to allow you to apply the concepts learned in that lesson to a
real-life problem.
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Chi-Square Test for Goodness of Fit in a Plant Breeding Example
In plant breeding and genetics research, plant breeders establish a hypothesis to explain how they think a particular trait is inherited, such as if it is due to one gene with complete dominance, an i...
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Corn Breeding: Lessons From the Past
This is the first in a series of lessons specifically designed to instruct individuals without any formal training in genetics or statistics about the science of corn breeding. Individuals with forma...
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Corn Breeding: Introduction to Concepts in Quantitative Genetics
This is the second in a series of lessons specifically designed to instruct individuals without any formal training in genetics or statistics about the science of corn breeding. Individuals with form...
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Corn Breeding: Mass Selection
This is the fourth in a series of lessons specifically designed to instruct individuals without any formal training in genetics or statistics about the science of corn breeding. Individuals with forma...
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Corn Breeding: Types of Cultivars
This is the third in a series of lessons specifically designed to instruct individuals without any formal training in genetics or statistics about the science of corn breeding. Individuals with formal...
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Corn Flowers and Hybrid Seeds
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Corn Rootworm - Part 1: Description of Corn Rootworm and Other Early Season Corn Pests
This lesson will discuss the corn rootworm complex, which consists of
the northern, western, and southern corn rootworm, focusing on the
northern and western species. The information in this lesson ...
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Corn Rootworm - Part 2: Corn Rootworm Management
This lesson will discuss economic thresholds and management options
related to the corn rootworm complex consisting of the northern,
western, and southern corn rootworm, with emphasis on the norther...
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DNA and DNA Extraction
This lesson discusses what DNA is and how it relates to genes and chromosomes. How and why DNA is extracted in
the genetic engineering process is also covered.
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Electrophoresis: How scientists observe fragments of DNA
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European Corn Borer and Bacillus thuringiensis
This lesson contains information about the history, life cycle, and host plants of the European corn borer and information relating to the history and biology of Bacillus thuringiensis.
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Gene Cloning
This lesson covers the utilization of gene cloning to isolate and copy a specific gene of interest. The transformation of
bacteria with plasmids containing antibiotic resistance genes to make gene l...
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Gene Cloning Part 1: The Mechanics of Recombinant DNA
This lesson describes how DNA molecules can be recombined to make recombinant DNA and how special DNA molecules called plasmids allow scientists to clone genes.
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Gene Cloning Part 2: Making and Screening Gene Libraries
This lesson teaches how a specific gene can be identified from among the thousands of genes that can be cloned from an organism.
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Gene Design 1 - Gene Regions
This lesson describes the three gene regions and their roles in gene expression. It also discusses how the regions of a gene
can be altered to obtain desired trait expression.
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Gene Design 2 - Gene Constructs
This lesson builds upon the gene region lesson discussing the gene construct of currently used hybrids and explaining how
these combinations result in a particular gene expression.
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Gene Expression Part 1: Reading Genes to Make Proteins
This lesson describes the steps involved in a cell as DNA sequence information is read to make RNA and RNA is read to make proteins.
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Gene Expression Part 2: Expression of Herbicide Resistant ALS Genes in Plants
This lesson describes how changes in the DNA sequence of a gene can alter the synthesis of a protein and thus influence traits such as herbicide resistance.
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Linkage - Part 1
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Linkage - Part 2
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Marker-Assisted Selection
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Mitosis and Meiosis and the Cell Cycle
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Native Plant Breeding: Bringing the Beauty of Nature Home
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Overview of Plant Genetic Engineering
Lesson one is a general description of the overall process of genetic engineering. A basic explanation of the five steps for genetically engineering a crop is provided. Details for each step are given...
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Polymerase Chain Reaction (PCR)
The polymerase chain reaction laboratory technique is used in a variety of applications to make copies of a specific DNA sequence. This lesson describes how a PCR reaction works, what it accomplishes...
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Producing Grain for Animal, Food, and Industrial Uses
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Propagation and Procreation - More of a Good Thing
-Creating unique individuals or perfect little clones
-Genetics of it all--Peas in Darwin's pods
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Protein Detection in Plants
This lesson will focus on molecular principles involved in the detection of biotechnology derived proteins in crops, using the lateral flow ELISA.
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Quantitative Trait Locus (QTL) Analysis 1
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Quantitative Trait Locus (QTL) Analysis 2
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Quantitative Traits
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Real Time PCR - Some Basic Principles
Real time PCR is a laboratory technique that can perform relatively accurate, reliable and reproducible measurements, to quantitatively determine the presence of specific gene sequences. Its value is...
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The Dihybrid Cross and Independent Assortment
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The Inheritance of Variation
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The New Bts
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The role of JAR1 in insect feeding response
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Theories Behind Plant Tissue Culture
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Transformation 1 - Plant Tissue Culture
This lesson explains the technique of tissue culture as used in plant transformation. It discusses important issues, such as
the use of selectable markers, genotype specificity, and tissue culture a...
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Transformation 2 - Transformation Methods
This lesson explains the procedure of introducing a new gene into a plant cell (transformation). It discusses the main goals
of the transformation process and describes the four main methods of tran...
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Transformation 3 - Transformation Events
This lesson defines an 'event'. It explains the determining factors specific to an event, the qualities of a desirable event, and
the identification and selection of desirable events.
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Sample Genetics Exam
This examination is composed of sample questions from a genetics final. We recommend taking this exam to test your genetics knowledge and decide if improving your genetics knowledge may help to advanc...
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