All Media (Videos)

An animation on how the conventional breeding method of backcross is done. This is the seventh of a series of seven animations that detail the process of crop genetic engineering.

Presentation describing how to install a new Package in R, by Ashu Guru, University of Nebraska Raikes School (1 min)

Presentation on demonstrating function "str" in R, by Ashu Guru, University of Nebraska Raikes School (3.5 mins)

Presentation on demonstrating function "factor" in R, by Ashu Guru, University of Nebraska Raikes School (4.5 mins)

Presentation on demonstrating function "xtabs" in R, by Ashu Guru, University of Nebraska Raikes School (3 mins)

Presentation on demonstrating function "sink" in R, by Ashu Guru, University of Nebraska Raikes School (2.5 mins)

Presentation on demonstrating "New Treatments as Fixed Effect" in R, by Ashu Guru, University of Nebraska Raikes School (7.5 mins)

Presentation on demonstrating function "within" in R, by Ashu Guru, University of Nebraska Raikes School (4.05 mins)

Presentation on demonstrating the model with new Entries as Random Effects, by Ashu Guru, University of Nebraska Raikes School (4.0 mins)

This animation examines several states of a weed species during the growing season and studies the transitions that occur between each state.

This animation shows how plants uptake herbicides from the soil.

A description and illustration of the different types of flowers found in the family Asteraceae

A tomato plant sprayed with 2,4-D

This animation summarizes how auxin and auxinic herbicides may turn on certain genes and how those gene products may alter plant growth.

An illustration of how auxins and auxinic herbicides may elicit responses in plant cells. It describes basipetal transport of auxins via influx and efflux carriers and displays a scenario of auxin action where auxin receptors recognize auxins and auxinic herbicides, which then induce a signal transduction cascade to turn on various gene products. The role of these gene products in plant response is shown as well.

This animation defines ionization, pH, and pKa.

This animation shows the ethylene biosynthesis pathway and how auxins and environmental stresses induce it.

This animation shows the transcription process of RNA within the plant cell. Single stranded RNA moves out of the cell where it is translated into proteins. This is the first in a series of three animations on protein synthesis.

This animation shows the differences between natural plant breeding and plant breeding used in biotechnology. The end result is a plant with the desired gene lacking undesired genes.

The human body response when exposed to allergens.

How the gene gun works to transform cells with new DNA. This is the sixth of a series of seven animations that detail the process of crop genetic engineering

Antisense Technology and its use in tomatoes.

This animation describes how herbicides are taken up by leaves and illustrates how physico-chemical characteristics alter their movement across cuticles. Passive and active mechanisms of herbicide absorption across plant membranes into cells are shown as well.

Tutorial clip demonstrating how to calculate expected F2 ratios and individuals in classes for a chi-square analysis.

Tutorial clip demonstrating how to calculate expected F2 ratios and individuals in classes for a chi-square analysis.

Video tutorial showing how to read a chi-square distribution table to determine probability values that experimental data supports a tomato breeding hypothesis.

This video clip demonstrates how to calculate the expected F2 frequencies and numbers of individuals based upon genotypic data from DNA markers.

An animation that demonstrates how controlled crosses are made in corn.

This animation shows the lifecycle of the corn rootworm, as well as showing what happens when corn rootworm larvae consume roots containing Bt.

This animation discusses the importance of Insect Resistance Management (IRM) and illustrates different field refuge designs.

(Approx. 6 minutes)

(Approx. 10 minutes)

Presentation on the experiment, from a data analyst's perspective by Ashu Guru, Univ of Nebraska Raikes School. (4 mins)

If you are a Windows user please follow the following demonstration video by Ashu Guru (5 mins)

If you are a Mac user please follow the following demonstration video by Ashu Guru (5 mins):

Data files presentation by Ashu Guru, Univ of Nebraska Raikes School. (2 mins)

Presentation on the cycle and tasks of data analysis by Ashu Guru, Univ of Nebraska Raikes School (4 mins)

Presentation on how to divide a complex problem into smaller tasks by Ashu Guru, Univ of Nebraska Raikes School (2 mins)

Presentation on demonstrating data types in R, by Ashu Guru, Univ of Nebraska Raikes School (15 mins)

Presentation describing the subset function in R, by Ashu Guru, Univ of Nebraska Raikes School (2 mins)

Presentation describing the aggregate function in R, by Ashu Guru, Univ of Nebraska Raikes School (4 mins)

Presentation describing the rbind function in R, by Ashu Guru, Univ of Nebraska Raikes School (2 mins)

Presentation describing the transpose function in R, by Ashu Guru, Univ of Nebraska Raikes School (4 mins)

Presentation describing the transform function in R, by Ashu Guru, Univ of Nebraska Raikes School (2 mins)

Presentation describing the merge function in R, by Ashu Guru, Univ of Nebraska Raikes School (5 mins)

Presentation describing the script in R, by Ashu Guru, Univ of Nebraska Raikes School (18 mins)

Learn about the life cycle of perennials and how defoliation at different times of the season and different heights affects their growth and carbohydrate reserve levels.

Esta animación muestra el proceso general de la ingeniería genética.

This animation shows the DNA structure and how it makes up genes and chromosomes in the cell. This is the second of a series of seven animations that detail the process of crop genetic engineering.

This animation explains how gel electrophoresis works. The affect of fragment size on movement through the gel is demonstrated.

Soil Erosion by Wind and its Control

This video clip explains the three steps in wind erosion (detachment, transport, and deposition). The clip also explains how threshold velocity varies depending on the nature of the soil surface.

Hover over a hillside area to see the water flow pattern.

Factors and processes of wind erosion are explained in this video clip. The clip explains how wind velocity or speed affects wind erosive energy. The video also explains how the nature of the soil surface affects erosive wind energy.

Animation of saltation, soil creep, and suspension during wind erosion.

This video clip explains the relationship of soil texture to type of wind erosion (saltation, surface creep or suspension). Video clip by Dr. John Tatarko, USDA

This video explains the beneficial effects of vegetative cover in reducing wind erosive energy and trapping moving particles.

This video clip explains how barriers alter the effect of the wind force on the soil surface. The video discusses the different types of barriers and their advantages and disadvantages.

This video clip explains how wind erosion can be reduced by roughening the soil surface and forming soil aggregates. This method of erosion control can be used when vegetation is sparse and/or the cropping system does not allow for vegetative cover.

This video explains the beneficial effects of soil surface cover to control and reduce wind erosion.

This video explains how strip cropping can reduce wind erosive energy and traps moving particles

European Corn Borer Movement Map

European Corn Borer Generation Map

This animation goes through the life cycle of the European corn borer.

This animation shows how Bt causes death in the European corn borer (ECB).

This animation illustrates the botanical parts of flower structures. Edited March, 2012.

A basic depiction of the steps in gene cloning. This is the third of a series of seven animations that detail the process of crop genetic engineering. To begin at the beginning, see Overview of Crop Genetic Engineering. (To return to the animation previous to this, go to DNA and DNA Extraction. To go to the next animation, go to Gene Regions.)

This animation shows how a plasmid responsible for encoding a gene can be cut. The plasmid can be altered with the addition of linear DNA to form a recombinant plasmid to encode a new gene of interest. This is the first of four animations detailing the gene cloning process. The other three animations are Bacteria Transformation, Making a Library, and Screening a DNA Library.

Illustrates the beginning stages of gene cloning. This animation shows how plasmids become recombinant and are inserted into bacteria cells. This is the second of four animations detailing the gene cloning process.

This animation shows how to make a colony of new DNA in order to locate a specific gene of interest. This is the third of four animations detailing the gene cloning process. To begin at the beginning, choose Making a Recombinant Plasmid. (The animation prior to this one is Bacteria Transformation. The animation just after this one is Screening a DNA Library.)

This animation shows how scientists find the gene of interest by screening thousands of bacteria. Scientists can screen the protein or the DNA. This is the fourth of four animations detailing the gene cloning process.

This animation shows the three gene coding regions. This is the fourth of a series of seven animations that detail the process of crop genetic engineering. To begin at the beginning, see Overview of Crop Genetic Engineering.

This animation shows how a gene is constructed to eventually produce a protein in a Bt corn plant. This is the fifth of a series of seven animations that detail the process of crop genetic engineering.

This is an interactive animation that asks the viewer to design a gene by selecting the promoter and coding region that will produce a plant with the desired traits.

A detailed depiction of transcription, the first stage of protein synthesis. This is the second in a series of three animations on protein synthesis. To begin at the beginning, go to Protein Synthesis - A general overview.

A detailed depiction of translation, the second stage of protein synthesis. This is the third in a series of three animations on protein synthesis. To begin at the beginning, go to Protein Synthesis - A general overview.

A USGA green session short demonstrating the need for watering golf courses.

An animation in the context of a plant cell which shows the sequence of converting light energy photons into ATP and NADPH, biochemical energy.

Discusses the relationship between herbicide effectiveness and resistance development.

Illustrates how selection for herbicide resistance occurs.

Illustrates both susceptibility and resistance for single and multiple target sites in herbicides.

Photosystem II Resistance Animation

Glutathione Conjugation

Amide Hydrolysis

General and specific examples of major oxidative Phase I reactions are shown in this animation.

Accesando: Accion Enzimatica

Esta animación es sobre la naturaleza competitiva del glifosato.

This animation shows the role of EPSP synthase in binding shikimate-3-phosphate and PEP.

This animation shows how herbicides compete with PEP to alter the function of an enzyme.

An animation on the role of acetolactate synthesis in branched chain amino acid biosynthesis.

This animation shows the process of lipid biosynthesis. It focuses on the biotin carrier protein.

International Plant Protection Convention, 60th anniversary (IPPC)

Drought Tolerant Maize for Africa (DTMA) -- Presented by CIMMYT

Diagramas de Jablonski

Esta animación describe como se mueve el agua a través de las plantas y como este movimiento es afectado por diversos factores.

Descripción de la Transferencia de Electrones entre Fotosistemas

Transferéncia de Electrones Dentro de la Célula

This animation demonstrates the four forms that phosphorus (P) can take in surface water, and how the equilibrium between the forms can be upset and then rebalanced.

An animation showing how plant breeding has changed over time, including the use of molecular markers.

This animation shows details on DNA extraction methods for plant material.

Se muestra como las auxinas y los herbicidas auxínicos pueden inducir respuestas celulares y se describe el transporte basípeto de las auxinas. También se muestra como los receptores de auxinas reconocen las auxinas y los herbicidas auxínicos, los cuales inducen entonces la transmisión y traducción de señales para activar varios genes; el papel de los productos de esos genes en las respuestas de las plantas es también mostrado.

En esta animación se definen los términos Ionización, pH y pKa.

Esta animación resume la forma en que las auxinas y los herbicidas auxinicos pueden activar ciertos genes y como los productos de esos genes pueden alterar el crecimiento de las plantas.

Esta animación muestra la ruta de síntesis del etileno y su inducción por las auxinas y el estrés ambiental.

A general look at the process of crop genetic engineering. This is the first of a series of seven animations that detail the process of crop genetic engineering. The six lessons after this are DNA and DNA Extraction, Gene Cloning, Gene Regions, Gene Modification, Gene Gun, and Backcross Breeding.

The growth of grass leaves and tillers.

This activity discusses both seed structure and seedling emergence in monocots. Through active learning elements, photos and text students will discover the basic anatomy of seeds and the function of each structure. The process of seedling emergence is presented in detail including the difference between emergence in cool-season and warm-season grasses.

This video covers how to characterize developmental stages of tillers and quantify them.

This animation shows how a chlorophyll molecule captures light energy and excites an electron to begin photosynthesis.

This animation depicts the process of PCR. Each component involved in the process is outlined and described in this animation.

Discusses how production practices affect the grain quality of maize.

Discusses the relationship between the amount of nitrogen applied and how it affects grain yield and protein concentration in a grain crop.

Discusses the relationship between the amount of nitrogen applied and how it affects the protein fraction, lysine concentration, and kernel hardness of a grain crop.

This animations illustrates the structures of a flower, plant breeding, cross pollination and making crosses.

This animation illustrates the concepts of protein detection using the lateral flow strip method. This method is similar to ELISA and is utilized in detecting GMOs, among other applications.

The objective of this animation is to develop a QTL mapping population for locating and characterizing the genes responsible for resistance to tan spot disease of wheat.

This animation shows how markers on a gel are scored.

A demonstration of how to complete QTL analysis using single-factor ANOVA in Excel

FRET is an acronym for Fluorescence Resonance Energy Transfer. It is a DNA detection tool.

The Taqman probe detection system used in real time PCR (also known as quantitative PCR) is illustrated in this animation. One application of this method is use in GMO detection.

Real time PCR can be accomplished using the taqman detection system. This video shows an overview of the taqman process.

This animation shows how herbicides are taken up by roots and illustrates the path a herbicide takes across the root to reach the vascular system of the plant.

Dr. Baenziger's wheat breeding experiments and the Punnett Square

Chemical Weathering - hydrolysis of feldspar.

Feldspar Weathers to Clay

Dehydration is the removal of water from rock or mineral structures. A good example of dehydration is the removal of water from limonite, resulting in the formation of hematite.

An overview of the different soil horizons, their composition, and how they develop.

This animation displays how electrons can absorb and transfer energy.

A discussion about herbicide resistance management and research with dicamba.

This video is about 4 1/2 minutes long.

Fragrant Signal 2

This animation details how water moves through plants and how various factors affect this movement.

This video details monogastric digestion through the example of a pig.