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ARTICLE

Positive and negative effects of UV

The Earth’s atmosphere blocks most of the Sun’s UV radiation from penetrating through the atmosphere. The small amount that gets through has both positive and negative effects. Positive ...

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Impacts of biotechnology on society

Biotechnology has helped improve the quality of people’s lives for over 10,000 years. Today’s biotechnologies vary in application and complexity. However, they all have potential to change our ...

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Transgenic cows – introduction

Scientists at AgResearch in New Zealand have successfully produced healthy transgenic cows that make modified milk or human therapeutic proteins in their milk. What is a transgenic cow ...

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Modern biotechnology

The discovery that genes are made up of DNA and can be isolated, copied and manipulated has led to a new era of modern biotechnology. New Zealand has many applications for modern biotechnologies ...

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The genotype/phenotype connection

What role do genes play in development? How does your genotype contribute to your phenotype? Or more explicitly, how do genes work together to produce RNA that codes for proteins that make up ...

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Mistakes in DNA

Genetic messages are found on the chromosomes, and we can think of them as genetic codes that are made up of three letter words. For example a very simple genetic message might be: ...

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Techniques used to make transgenic cows

Scientists producing transgenic cows use a range of techniques including DNA cloning, restriction enzyme digests, ligation, polymerase chain reaction (PCR), transfection, nuclear transfer and in ...

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Transgenic cows making modified milk

In 2000, AgResearch generated their first transgenic cows. These cows produced modified or ‘designer’ milk. Discover why the scientists did this research and what they found. Cows with modified ...

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Breeding a new apple cultivar

Breeding a new apple cultivar takes a long time and involves many steps. The aim is to produce high-quality fruit that consumers will like and want to buy. Breeding apples to increase quality The ...

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Obesity: genetic or environmental?

Rachael Taylor is a Research Associate Professor based at the Edgar National Centre for Diabetes Research, University of Otago. Her research focuses on the environmental factors that contribute ...

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Breeding easy care sheep

Easy care sheep developed by AgResearch were produced using selective breeding. Find out more about selective breeding and why scientists use this method to breed the easy care traits. Selective ...

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Transgenic cows making therapeutic proteins

Scientists at AgResearch have generated transgenic cows that produce therapeutic proteins in their milk. Here, we explain the advantages and disadvantages of using transgenic technologies to ...

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Uniquely me – key Terms

What makes you, you and me, me? Genes or environment? How we look and act is the result of the interaction of our genes with our environment. Even identical twins, with an identical genetic ...

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Future uses of transgenic cows

AgResearch scientists have generated transgenic cows with biomedical and agricultural applications. Here, we list potential applications of transgenic cows and describe how a transgenic farm ...

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Breeding red-fleshed apples – introduction

Find out how and why a red-fleshed apple variety is being bred in New Zealand, and discover how genetic information, consumer research and sensory science are all involved. Red-fleshed apples – ...

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Genetic information and apple breeding

Information about apple genetics is helping breeders at Plant & Food Research in New Zealand to breed new apple cultivars faster and more efficiently. Selectively breeding new apple cultivars ...

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Economic impacts of GM crops

Can farmers make a profit from growing genetically modified (GM) food crops? Economic modelling can be used to weigh up different factors that influence the profits that can be gained from ...

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How do people find out that they have cancer?

Cancer is often discovered when people go to their doctor because they have discovered a lump or spot or they have symptoms that the doctor decides need to be investigated further. There is no ...

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Genes and lactose intolerance

In New Zealand, we drink a lot of milk, so you might be surprised to learn that most adults in the world are lactose intolerant and can’t consume dairy products. Inheriting lactose intolerance ...

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Easy care sheep – introduction

Easy care sheep, developed by AgResearch, have been selectively bred to be more productive and less labour-intensive for farmers. Our collection of resource on this reveals more about these sheep ...

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What is biotechnology?

‘Biotechnology’ generally refers to the use of a living organism or part of a living organism or process for a specific purpose. This broad definition includes both modern and ancient ...

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